diff --git a/backend/app.js b/backend/app.js
index 7922ed5..6ea76e0 100644
--- a/backend/app.js
+++ b/backend/app.js
@@ -14,6 +14,7 @@ app.use(express.urlencoded({ extended: true }));
 require('./routes/info.routes')(app);
 require('./routes/auth.routes')(app);
 require('./routes/user.routes')(app);
+require('./routes/player.routes')(app);
 require('./routes/pitchType.routes')(app);
 require('./routes/bullpenSession.routes')(app);
 
diff --git a/backend/controllers/auth.controller.js b/backend/controllers/auth.controller.js
index 98264c6..63baf98 100644
--- a/backend/controllers/auth.controller.js
+++ b/backend/controllers/auth.controller.js
@@ -1,45 +1,48 @@
 const db = require("../models/index");
 const config = require("../config/auth.config");
-const { Auth: Auth, User: User, Role: Role, RefreshToken: RefreshToken } = db;
-
-const Op = db.Sequelize.Op;
+const { Auth: Auth, User: User, RefreshToken: RefreshToken } = db;
 
 const jwt = require("jsonwebtoken");
+const {registerUser} = require("../helper/user.helper");
 
 exports.register = (req, res) => {
-    // Save User to Database
-    Auth.create({
-        email: req.body.email,
-        password: req.body.password
-    }).then((auth) => {
-        User.create({
-            firstName: req.body.firstName,
-            lastName: req.body.lastName,
-            dateOfBirth: new Date(req.body.dateOfBirth),
-            authId: auth.id,
-            gender: 'male',
-            handedness: 'right'
-        }).then(user => {
-            if (!req.body.roles || !req.body.roles.length === 0) {
-                req.body.roles = ['player'];
-            }
-            Role.findAll({
-                where: {
-                    name: {
-                        [Op.or]: req.body.roles
-                    }
-                }
-            }).then(roles => {
-                user.setRoles(roles).then(() => {
-                    res.send({ message: "User registered successfully!" });
-                });
-            });
-        }).catch(err => {
-            res.status(500).send({ message: err.message });
-        });
-    }).catch(err => {
+    // Ensure at least one role ist set
+    req.body.roles = req.body.roles?.length ? req.body.roles : ['player'];
+
+    try {
+        registerUser(req.body);
+        res.send({ message: "User registered successfully!" });
+    } catch (err) {
         res.status(500).send({ message: err.message });
-    });
+    }
+    // // Save User to Database
+    // Auth.create({
+    //     email: req.body.email,
+    //     password: req.body.password
+    // }).then((auth) => {
+    //     User.create({
+    //         firstName: req.body.firstName,
+    //         lastName: req.body.lastName,
+    //         dateOfBirth: new Date(req.body.dateOfBirth),
+    //         authId: auth.id
+    //     }).then(user => {
+    //         Role.findAll({
+    //             where: {
+    //                 name: {
+    //                     [Op.or]: req.body.roles
+    //                 }
+    //             }
+    //         }).then(roles => {
+    //             user.setRoles(roles).then(() => {
+    //                 res.send({ message: "User registered successfully!" });
+    //             });
+    //         });
+    //     }).catch(err => {
+    //         res.status(500).send({ message: err.message });
+    //     });
+    // }).catch(err => {
+    //     res.status(500).send({ message: err.message });
+    // });
 };
 
 exports.login = async (req, res) => {
@@ -94,10 +97,6 @@ exports.login = async (req, res) => {
     }
 };
 
-// exports.logout = (req, res) => {
-//
-// }
-
 exports.refreshToken = async (req, res) => {
     const { refreshToken: requestToken } = req.body;
 
diff --git a/backend/controllers/player.controller.js b/backend/controllers/player.controller.js
new file mode 100644
index 0000000..ce7252d
--- /dev/null
+++ b/backend/controllers/player.controller.js
@@ -0,0 +1,63 @@
+const db = require("../models/index");
+const {registerUser} = require("../helper/user.helper");
+const Player = db.Player;
+const User = db.User;
+const Op = db.Sequelize.Op;
+
+exports.insert = (req, res) => {
+    registerUser(req.body).then(user => {
+        return Player.create({
+            firstName: req.body.firstName,
+            lastName: req.body.lastName,
+            dateOfBirth: req.body.dateOfBirth,
+            gender: req.body.gender,
+            height: req.body.height ? req.body.height : null,
+            weight: req.body.weight ? req.body.weight : null,
+            bats: req.body.bats ? req.body.bats : 'right',
+            throws: req.body.throws ? req.body.throws : 'right',
+            state: req.body.state ? req.body.state : 'inactive',
+            jerseyNumber: req.body.jerseyNumber,
+            userId: user.id
+        }).then(player => {
+            return player.reload({ include: { model: User }});
+        });
+    }).then(player => {
+        res.status(201).send(player);
+    }).catch(err => {
+        res.status(500).send({message: err.message});
+    });
+};
+
+exports.findAll = (req, res) => {
+    const title = req.query.title;
+    const condition = title ? {title: {[Op.iLike]: `%${title}%`}} : null;
+
+    Player.findAll({
+        where: condition,
+        include: {
+            model: User
+        }
+    }).then(data => {
+        res.send(data);
+    }).catch(err => {
+        res.status(500).send({message:err.message || "Some error occurred while retrieving players."});
+    });
+};
+
+exports.findOne = (req, res) => {
+    const id = req.params.id;
+
+    Player.findByPk(id, {
+        include: {
+            model: User
+        }
+    }).then(data => {
+        if (data) {
+            res.send(data);
+        } else {
+            res.status(404).send({message: `Cannot find user with id=${id}.`});
+        }
+    }).catch(err => {
+        res.status(500).send({message: `Error retrieving user with id=${id}.`});
+    });
+}
\ No newline at end of file
diff --git a/backend/helper/seeder.helper.js b/backend/helper/seeder.helper.js
new file mode 100644
index 0000000..867aa28
--- /dev/null
+++ b/backend/helper/seeder.helper.js
@@ -0,0 +1,74 @@
+const bcrypt = require("bcryptjs");
+
+export const createUsers = async (queryInterface, roles, users) => {
+    // Create Authentications
+    await queryInterface.bulkInsert('Authentications', users.map((player) => {
+        return {
+            email: player.email,
+            password: bcrypt.hashSync(player.password, 8),
+            createdAt: new Date(),
+            updatedAt: new Date()
+        }
+    }));
+
+    const auths = await queryInterface.select(null, 'Authentications');
+
+    // Create Users
+    await queryInterface.bulkInsert('Users', users.map(player => {
+        const auth = auths.find(auth => auth.email === player.email);
+        return {
+            firstName: player.firstName,
+            lastName: player.lastName,
+            dateOfBirth: player.dateOfBirth,
+            authId: auth ? auth.id : null,
+            createdAt: new Date(),
+            updatedAt: new Date()
+        };
+    }));
+
+    const createdUsers = await queryInterface.select(null, 'Users');
+    const userRoles = createdUsers.flatMap(user => user.roles.map(role => ({
+        id: user.id,
+        role: role
+    })));
+
+    const rolesByName = roles.reduce((map, role) => {
+        map[role.name] = role;
+        return map;
+    })
+
+    // Create UserRoles
+    await queryInterface.bulkInsert('UserRoles', userRoles.map(userRole => {
+        return {
+            userId: userRole.id,
+            roleId: rolesByName[userRole.role].id,
+            createdAt: new Date(),
+            updatedAt: new Date()
+        };
+    }));
+
+    return createdUsers;
+}
+
+export const createPlayer = async (queryInterface, roles, players) => {
+
+    const users = await createUsers(queryInterface, roles, players);
+
+    // Create Players
+    await queryInterface.bulkInsert('Players', players.map(player => {
+        const user = users.find(user => user.firstName === player.firstName && user.lastName === player.lastName);
+        return {
+            height: player.height ? player.height : null,
+            weight: player.weight ? player.weight : null,
+            gender: player.gender,
+            bats: player.bats,
+            throws: player.throws,
+            state: player.state,
+            userId: user ? user.id : null,
+            createdAt: new Date(),
+            updatedAt: new Date()
+        };
+    }));
+
+
+}
diff --git a/backend/helper/user.helper.js b/backend/helper/user.helper.js
new file mode 100644
index 0000000..f4dadcc
--- /dev/null
+++ b/backend/helper/user.helper.js
@@ -0,0 +1,33 @@
+const db = require("../models/index");
+
+const Op = db.Sequelize.Op;
+
+const { Auth: Auth, User: User, Role: Role } = db;
+
+const registerUser = (user) => {
+    return Auth.create({
+        email: user.email,
+        password: user.password
+    }).then((auth) => {
+        return User.create({
+            firstName: user.firstName,
+            lastName: user.lastName,
+            dateOfBirth: new Date(user.dateOfBirth),
+            authId: auth.id
+        }).then(createdUser => {
+            return Role.findAll({
+                where: {
+                    name: {
+                        [Op.or]: user.roles
+                    }
+                }
+            }).then(roles => {
+                createdUser.setRoles(roles);
+
+                return createdUser;
+            });
+        });
+    });
+}
+
+module.exports = { registerUser };
diff --git a/backend/jest.setup.js b/backend/jest.setup.js
index 7037f5c..4e12383 100644
--- a/backend/jest.setup.js
+++ b/backend/jest.setup.js
@@ -3,7 +3,7 @@ const bcrypt = require("bcryptjs");
 
 const { beforeAll, afterAll } = require('@jest/globals');
 
-const { Auth: Auth, User: User, Role: Role, PitchType: PitchType } = db;
+const { Auth: Auth, User: User, Player: Player, Role: Role, PitchType: PitchType } = db;
 const Op = db.Sequelize.Op;
 
 beforeAll(async () => {
@@ -21,9 +21,17 @@ beforeAll(async () => {
             }
         }
     });
+    const coachRole = await Role.findAll({
+        where: {
+            name: {
+                [Op.eq]: 'coach'
+            }
+        }
+    });
 
     await Auth.destroy({ where: {} });
     await User.destroy({ where: {} });
+    await Player.destroy({ where: {} });
     await Auth.create({
         email: 'player@example.com', password: 'hash1234'
     }).then(auth => {
@@ -31,12 +39,33 @@ beforeAll(async () => {
             firstName: 'Alice',
             lastName: 'Player',
             dateOfBirth: '1990-01-01',
+            authId: auth.id
+        });
+    }).then(async user => {
+        await user.setRoles(playerRole);
+        return Player.create({
+            height: 172.7,
+            weight: 70.3,
             gender: 'female',
-            handedness: 'right',
+            bats: 'right',
+            throws: 'right',
+            jerseyNumber: 24,
+            state: 'active',
+            userId: user.id
+        })
+    });
+
+    await Auth.create({
+        email: 'coach@example.com', password: 'hash1234'
+    }).then(auth => {
+        return User.create({
+            firstName: 'Bob',
+            lastName: 'Coach',
+            dateOfBirth: '1990-01-01',
             authId: auth.id
         });
     }).then(user => {
-        return user.setRoles(playerRole);
+        return user.setRoles(coachRole);
     });
     await PitchType.destroy({ where: {} });
     await PitchType.bulkCreate([
diff --git a/backend/middleware/authJwt.js b/backend/middleware/authJwt.js
index d6d04a0..c818fcc 100644
--- a/backend/middleware/authJwt.js
+++ b/backend/middleware/authJwt.js
@@ -1,7 +1,7 @@
 const jwt = require("jsonwebtoken");
 const config = require("../config/auth.config.js");
 const db = require("../models/index");
-const User = db.user;
+const User = db.User;
 
 const { TokenExpiredError } = jwt;
 
@@ -88,7 +88,7 @@ const isCoachOrAdmin = (req, res, next) => {
 const authJwt = {
     verifyToken: verifyToken,
     isAdmin: isAdmin,
-    isModerator: isCoach,
-    isModeratorOrAdmin: isCoachOrAdmin
+    isCoach: isCoach,
+    isCoachOrAdmin: isCoachOrAdmin
 };
 module.exports = authJwt;
diff --git a/backend/migrations/08-create-player-and-move-data.js b/backend/migrations/08-create-player-and-move-data.js
new file mode 100644
index 0000000..0168ad7
--- /dev/null
+++ b/backend/migrations/08-create-player-and-move-data.js
@@ -0,0 +1,71 @@
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+    async up(queryInterface, Sequelize) {
+        await queryInterface.createTable('Players', {
+            id: {
+                allowNull: false,
+                autoIncrement: true,
+                primaryKey: true,
+                type: Sequelize.INTEGER
+            },
+            userId: {
+                type: Sequelize.INTEGER,
+                references: {
+                    model: 'Users',
+                    key: 'id'
+                },
+                onUpdate: 'CASCADE',
+                onDelete: 'CASCADE'
+            },
+            height: {
+                type: Sequelize.FLOAT
+            },
+            weight: {
+                type: Sequelize.FLOAT
+            },
+            gender: {
+                allowNull: false,
+                type: Sequelize.ENUM('male', 'female', 'other'),
+            },
+            bats: {
+                type: Sequelize.ENUM('left', 'right', 'both'),
+            },
+            throws: {
+                type: Sequelize.ENUM('left', 'right', 'both'),
+            },
+            jerseyNumber: {
+                type: Sequelize.INTEGER,
+            },
+            state: {
+                type: Sequelize.ENUM('active', 'injured', 'inactive'),
+            },
+            createdAt: {
+                allowNull: false,
+                type: Sequelize.DATE
+            },
+            updatedAt: {
+                allowNull: false,
+                type: Sequelize.DATE
+            }
+        });
+
+        // 2. Kopiere Daten von Users nach Players
+        await queryInterface.sequelize.query(`
+      INSERT INTO "Players" ("userId", "height", "weight", "gender", "bats", "throws", "createdAt", "updatedAt")
+      SELECT 
+        "id" as "userId",
+        "height",
+        "weight",
+        "gender"::text::"enum_Players_gender",
+        "handedness"::text::"enum_Players_bats",
+        "handedness"::text::"enum_Players_throws",
+        "createdAt",
+        "updatedAt"
+      FROM "Users"
+    `);
+
+    },
+    async down(queryInterface, /*Sequelize*/) {
+        await queryInterface.dropTable('Players');
+    }
+};
diff --git a/backend/migrations/09-remove-columns-from-user.js b/backend/migrations/09-remove-columns-from-user.js
new file mode 100644
index 0000000..1aa1ce9
--- /dev/null
+++ b/backend/migrations/09-remove-columns-from-user.js
@@ -0,0 +1,25 @@
+// Migration 2: Remove columns from Users
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+    async up(queryInterface, Sequelize) {
+        await queryInterface.removeColumn('Users', 'height');
+        await queryInterface.removeColumn('Users', 'weight');
+        await queryInterface.removeColumn('Users', 'gender');
+        await queryInterface.removeColumn('Users', 'handedness');
+    },
+
+    async down(queryInterface, Sequelize) {
+        await queryInterface.addColumn('Users', 'height', {
+            type: Sequelize.FLOAT
+        });
+        await queryInterface.addColumn('Users', 'weight', {
+            type: Sequelize.FLOAT
+        });
+        await queryInterface.addColumn('Users', 'gender', {
+            type: Sequelize.ENUM('male', 'female', 'other')
+        });
+        await queryInterface.addColumn('Users', 'handedness', {
+            type: Sequelize.ENUM('left', 'right', 'both')
+        });
+    }
+};
\ No newline at end of file
diff --git a/backend/models/player.model.js b/backend/models/player.model.js
new file mode 100644
index 0000000..f90a8b8
--- /dev/null
+++ b/backend/models/player.model.js
@@ -0,0 +1,46 @@
+const { Model } = require('sequelize');
+
+module.exports = (sequelize, DataTypes) => {
+    class Player extends Model {
+        /**
+         * Helper method for defining associations.
+         * This method is not a part of the Sequelize lifecycle.
+         * The `models/index` file will call this method automatically.
+         */
+        static associate(models) {
+            Player.belongsTo(models.User, {
+                foreignKey: "userId"
+            });
+        }
+    }
+    Player.init({
+        height: {
+            type: DataTypes.FLOAT
+        },
+        weight: {
+            type: DataTypes.FLOAT
+        },
+        gender: {
+            type: DataTypes.ENUM('male', 'female', 'other'),
+            allowNull: false
+        },
+        bats: {
+            type: DataTypes.ENUM('left', 'right', 'both'),
+        },
+        throws: {
+            type: DataTypes.ENUM('left', 'right', 'both'),
+        },
+        jerseyNumber: {
+            type: DataTypes.INTEGER,
+        },
+        state: {
+            type: DataTypes.ENUM('active', 'injured', 'inactive'),
+        }
+    }, {
+        sequelize,
+        modelName: 'Player',
+        tableName: "Players"
+    });
+
+    return Player;
+};
diff --git a/backend/models/user.model.js b/backend/models/user.model.js
index a43dfd8..16901f8 100644
--- a/backend/models/user.model.js
+++ b/backend/models/user.model.js
@@ -4,7 +4,7 @@ module.exports = (sequelize, DataTypes) => {
   class User extends Model {
     /**
      * Helper method for defining associations.
-     * This method is not a part of Sequelize lifecycle.
+     * This method is not a part of the Sequelize lifecycle.
      * The `models/index` file will call this method automatically.
      */
     static associate(models) {
@@ -32,25 +32,6 @@ module.exports = (sequelize, DataTypes) => {
       type: DataTypes.DATEONLY,
       allowNull: false
     },
-    height: {
-      type: DataTypes.FLOAT
-    },
-    weight: {
-      type: DataTypes.FLOAT
-    },
-    gender: {
-      type: DataTypes.ENUM('male', 'female', 'other'),
-      allowNull: false
-    },
-    handedness: {
-        type: DataTypes.ENUM('left', 'right', 'both'),
-    },
-    // position: {
-    //     type: DataTypes.ENUM
-    // },
-    // preferredPosition: {
-    //     type: DataTypes.ENUM
-    // }
   }, {
     sequelize,
     modelName: 'User',
diff --git a/backend/package.json b/backend/package.json
index 3dcd8ce..8bee971 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "main": "server.js",
   "scripts": {
+    "prebuild": "node -p \"'export const BULLPEN_VERSION = ' + JSON.stringify(require('./package.json').version) + ';'\" > config/version.js",
     "test": "cross-env NODE_ENV=test jest",
     "pretest": "cross-env NODE_ENV=test npm run db:reset",
     "db:create:test": "cross-env NODE_ENV=test npx sequelize-cli db:create",
@@ -13,6 +14,7 @@
     "seed:dev": "NODE_ENV=development npx sequelize-cli db:seed:all --debug",
     "start:prod": "npm run cross-env NODE_ENV=production node server.js",
     "start:dev": "cross-env NODE_ENV=development nodemon server.js",
+    "migrate:dev": "NODE_ENV=development npx sequelize-cli db:migrate",
     "test:db:start": "docker-compose -f docker-compose.test.yml up -d",
     "test:db:stop": "docker-compose -f docker-compose.test.yml down -v",
     "test:run": "dotenv -e .env.test -- jest --runInBand --detectOpenHandles",
diff --git a/backend/routes/player.routes.js b/backend/routes/player.routes.js
new file mode 100644
index 0000000..d3fd4f7
--- /dev/null
+++ b/backend/routes/player.routes.js
@@ -0,0 +1,25 @@
+const {authJwt} = require("../middleware");
+const controller = require("../controllers/player.controller");
+
+module.exports = function(app) {
+    app.use(function (req, res, next) {
+        res.header(
+            "Access-Control-Allow-Headers",
+            "x-access-token, Origin, Content-Type, Accept"
+        );
+        next();
+    });
+
+    app.post(
+        "/api/players",
+        [authJwt.verifyToken, authJwt.isCoachOrAdmin],
+        controller.insert);
+    app.get(
+        "/api/players",
+        [authJwt.verifyToken, authJwt.isCoachOrAdmin],
+        controller.findAll);
+    app.get(
+        "/api/players/:id",
+        [authJwt.verifyToken, authJwt.isCoachOrAdmin],
+        controller.findOne);
+};
\ No newline at end of file
diff --git a/backend/seeders/02-users-development.js b/backend/seeders/02-users-development.js
index 70bc567..6de7b16 100644
--- a/backend/seeders/02-users-development.js
+++ b/backend/seeders/02-users-development.js
@@ -1,91 +1,23 @@
-const bcrypt = require("bcryptjs");
 const process = require('process');
+const {createPlayer, createUsers} = require("../helper/seeder.helper");
 
 /** @type {import('sequelize-cli').Migration} */
 module.exports = {
   async up (queryInterface, /*Sequelize*/) {
     if (process.env.NODE_ENV !== 'development') return;
 
-    await queryInterface.bulkInsert('Authentications', [
-      { email: 'ryan.nolan@bullpen.com', password: bcrypt.hashSync('ryan$123', 8), createdAt: new Date(), updatedAt: new Date() },
-      { email: 'sandy.koufax@bullpen.com', password: bcrypt.hashSync('sandy$123', 8), createdAt: new Date(), updatedAt: new Date() },
-      { email: 'pedro.martinez@bullpen.com', password: bcrypt.hashSync('pedro$123', 8), createdAt: new Date(), updatedAt: new Date() },
-      { email: 'randy.johnson@bullpen.com', password: bcrypt.hashSync('randy$123', 8), createdAt: new Date(), updatedAt: new Date() },
-      { email: 'sparky.anderson@bullpen.com', password: bcrypt.hashSync('sparky$123', 8), createdAt: new Date(), updatedAt: new Date() },
-    ]);
-
-    const auths = await queryInterface.select(null, 'Authentications');
-    const ryanAuthId = auths.filter((auth) => auth.email === 'ryan.nolan@bullpen.com').map((auth) => auth.id).shift();
-    const sandyAuthId = auths.filter((auth) => auth.email === 'sandy.koufax@bullpen.com').map((auth) => auth.id).shift();
-    const pedroAuthId = auths.filter((auth) => auth.email === 'pedro.martinez@bullpen.com').map((auth) => auth.id).shift();
-    const randyAuthId = auths.filter((auth) => auth.email === 'randy.johnson@bullpen.com').map((auth) => auth.id).shift();
-    const sparkyAuthId = auths.filter((auth) => auth.email === 'sparky.anderson@bullpen.com').map((auth) => auth.id).shift();
-
-    await queryInterface.bulkInsert('Users', [{
-      firstName: 'Nolan',
-      lastName: 'Ryan',
-      dateOfBirth: new Date(1947, 1, 31),
-      gender: 'male',
-      handedness: 'right',
-      authId: ryanAuthId,
-      createdAt: new Date(),
-      updatedAt: new Date()
-    }, {
-      firstName: 'Sandy',
-      lastName: 'Koufax',
-      dateOfBirth: new Date(1935, 12, 30),
-      gender: 'male',
-      handedness: 'right',
-      authId: sandyAuthId,
-      createdAt: new Date(),
-      updatedAt: new Date()
-    }, {
-      firstName: 'Pedro',
-      lastName: 'Martinez',
-      dateOfBirth: new Date(1971, 10, 25),
-      gender: 'male',
-      handedness: 'right',
-      authId: pedroAuthId,
-      createdAt: new Date(),
-      updatedAt: new Date()
-    }, {
-      firstName: 'randy',
-      lastName: 'johnson',
-      dateOfBirth: new Date(1963, 9, 10),
-      gender: 'male',
-      handedness: 'right',
-      authId: randyAuthId,
-      createdAt: new Date(),
-      updatedAt: new Date()
-    }, {
-      firstName: 'Sparky',
-      lastName: 'Anderson',
-      dateOfBirth: new Date(1934, 22, 2),
-      gender: 'male',
-      authId: sparkyAuthId,
-      createdAt: new Date(),
-      updatedAt: new Date(),
-    }]);
-
-    const users = await queryInterface.select(null, 'Users');
-    const ryanId = users.filter((user) => user.firstName === 'Ryan').map((user) => user.id).shift();
-    const sandyId = users.filter((user) => user.firstName === 'Sandy').map((user) => user.id).shift();
-    const pedroId = users.filter((user) => user.firstName === 'Pedro').map((user) => user.id).shift();
-    const randyId = users.filter((user) => user.firstName === 'Randy').map((user) => user.id).shift();
-    const sparkyId = users.filter((user) => user.firstName === 'Sparky').map((user) => user.id).shift();
-
     const roles = await queryInterface.select(null, 'Roles');
-    const playerId = roles.filter((role) => role.name === 'player').map((role) => role.id).shift();
-    const coachId = roles.filter((role) => role.name === 'coach').map((role) => role.id).shift();
-    const adminId = roles.filter((role) => role.name === 'admin').map((role) => role.id).shift();
+    const players = [
+      { email: 'ryan.nolan@bullpen.com', password: 'ryan$123', firstName: 'Nolan', lastName: 'Ryan', dateOfBirth: new Date(1947, 1, 31), gender: 'male', bats: 'right', throws: 'right', state: 'active' },
+      { email: 'sandy.koufax@bullpen.com', password: 'sandy$123', firstName: 'Sandy', lastName: 'Koufax', dateOfBirth: new Date(1935, 12, 30), gender: 'male', bats: 'right', throws: 'right', state: 'active' },
+      { email: 'pedro.martinez@bullpen.com', password: 'pedro$123', firstName: 'Pedro', lastName: 'Martinez', dateOfBirth: new Date(1971, 10, 25), gender: 'male', bats: 'right', throws: 'right', state: 'active' },
+      { email: 'randy.johnson@bullpen.com', password: 'randy$123', firstName: 'Randy', lastName: 'Johnson', dateOfBirth: new Date(1963, 9, 10), gender: 'male', bats: 'right', throws: 'right', state: 'active' },
+    ];
 
-    await queryInterface.bulkInsert('UserRoles', [
-      { userId: ryanId, roleId: playerId, createdAt: new Date(), updatedAt: new Date() },
-      { userId: sandyId, roleId: playerId, createdAt: new Date(), updatedAt: new Date() },
-      { userId: pedroId, roleId: playerId, createdAt: new Date(), updatedAt: new Date() },
-      { userId: randyId, roleId: playerId, createdAt: new Date(), updatedAt: new Date() },
-      { userId: sparkyId, roleId: coachId, createdAt: new Date(), updatedAt: new Date() },
-      { userId: sparkyId, roleId: adminId, createdAt: new Date(), updatedAt: new Date() },
+    await createPlayer(queryInterface, roles, players);
+
+    await createUsers(queryInterface, roles, [
+      { email: 'sparky.anderson@bullpen.com', password: 'sparky$123', firstName: 'Sparky', lastName: 'Anderson', dateOfBirth: new Date(1934, 22, 2), roles: ['coach', 'admin'] },
     ]);
   },
 
@@ -95,5 +27,6 @@ module.exports = {
     await queryInterface.dropTable('Authentications');
     await queryInterface.dropTable('Users');
     await queryInterface.dropTable('UserRoles');
+    await queryInterface.dropTable('Players');
   }
 };
diff --git a/backend/seeders/02-users-production.js b/backend/seeders/02-users-production.js
index 63ff920..b363bf4 100644
--- a/backend/seeders/02-users-production.js
+++ b/backend/seeders/02-users-production.js
@@ -1,63 +1,21 @@
 const bcrypt = require("bcryptjs");
 const process = require('process');
+const {createPlayer, createUsers} = require("../helper/seeder.helper");
 
 /** @type {import('sequelize-cli').Migration} */
 module.exports = {
   async up (queryInterface, /*Sequelize*/) {
     if (process.env.NODE_ENV !== 'production') return;
 
-    await queryInterface.bulkInsert('Authentications', [
-      { email: 'admin@example.com', password: bcrypt.hashSync('admin$123', 8), createdAt: new Date(), updatedAt: new Date() },
-      { email: 'kuehl.julian@gmail.com', password: bcrypt.hashSync('julian$123', 8), createdAt: new Date(), updatedAt: new Date() },
-      { email: 'cichocki.c@gmail.com', password: bcrypt.hashSync('clemens$123', 8), createdAt: new Date(), updatedAt: new Date() }
-    ]);
-
-    const auths = await queryInterface.select(null, 'Authentications');
-    const adminAuthId = auths.filter((auth) => auth.email === 'admin@example.com').map((auth) => auth.id).shift();
-    const julianAuthId = auths.filter((auth) => auth.email === 'kuehl.julian@gmail.com').map((auth) => auth.id).shift();
-    const clemensAuthId = auths.filter((auth) => auth.email === 'cichocki.c@gmail.com').map((auth) => auth.id).shift();
-
-    await queryInterface.bulkInsert('Users', [{
-        firstName: 'Admin',
-        lastName: 'Bullpen',
-        dateOfBirth: '1970-01-01',
-        gender: 'other',
-        authId: adminAuthId,
-        createdAt: new Date(),
-        updatedAt: new Date(),
-      }, {
-        firstName: 'Julian',
-        lastName: 'Kühl',
-        dateOfBirth: '2009-08-08',
-        gender: 'male',
-        authId: julianAuthId,
-        createdAt: new Date(),
-        updatedAt: new Date(),
-      }, {
-        firstName: 'Clemens',
-        lastName: 'Cichocki',
-        dateOfBirth: '1970-01-01',
-        gender: 'male',
-        authId: clemensAuthId,
-        createdAt: new Date(),
-        updatedAt: new Date(),
-    }]);
-
-    const users = await queryInterface.select(null, 'Users');
-    const adminUserId = users.filter((user) => user.firstName === 'Admin').map((user) => user.id).shift();
-    const julianUserId = users.filter((user) => user.firstName === 'Julian').map((user) => user.id).shift();
-    const clemensUserId = users.filter((user) => user.firstName === 'Clemens').map((user) => user.id).shift();
-
     const roles = await queryInterface.select(null, 'Roles');
-    const adminRoleId = roles.filter((role) => role.name === 'admin').map((role) => role.id).shift();
-    const playerRoleId = roles.filter((role) => role.name === 'player').map((role) => role.id).shift();
-    const coachRoleId = roles.filter((role) => role.name === 'coach').map((role) => role.id).shift();
+    const players = [
+      { email: 'kuehl.julian@gmail.com', password: 'julian$123', firstName: 'Julian', lastName: 'Kühl', dateOfBirth: new Date(2009, 8, 8), gender: 'male', jerseyNumber: 75, bats: 'right', throws: 'right', state: 'active' },
+    ];
 
-    await queryInterface.bulkInsert('UserRoles', [
-      { userId: adminUserId, roleId: adminRoleId, createdAt: new Date(), updatedAt: new Date() },
-      { userId: julianUserId, roleId: playerRoleId, createdAt: new Date(), updatedAt: new Date() },
-      { userId: clemensUserId, roleId: coachRoleId, createdAt: new Date(), updatedAt: new Date() },
-      { userId: clemensUserId, roleId: playerRoleId, createdAt: new Date(), updatedAt: new Date() },
+    await createPlayer(queryInterface, roles, players);
+    await createUsers(queryInterface, roles, [
+      { email: 'cichocki.c@gmail.com', password: 'clemens$123', firstName: 'Clemens', lastName: 'Cichocki', dateOfBirth: new Date(1970, 1, 1), roles: ['coach'] },
+      { email: 'admin@example.com', password: 'admin$123', firstName: 'Admin', lastName: 'Bullpen', dateOfBirth: new Date(1970, 1, 1), roles: ['admin'] },
     ]);
   },
 
@@ -67,5 +25,6 @@ module.exports = {
     await queryInterface.dropTable('Authentications');
     await queryInterface.dropTable('Users');
     await queryInterface.dropTable('UserRoles');
+    await queryInterface.dropTable('Players');
   }
 };
diff --git a/backend/test/data/player.test.data.js b/backend/test/data/player.test.data.js
new file mode 100644
index 0000000..be10f0b
--- /dev/null
+++ b/backend/test/data/player.test.data.js
@@ -0,0 +1,19 @@
+const signupPlayer = {
+    firstName: "Hans",
+    lastName: "Zimmer",
+    dateOfBirth: "1956-11-23",
+    email: "base.ball@email.com",
+    height: 183.3,
+    weight: 83.3,
+    gender: "male",
+    bats: "right",
+    throws: "left",
+    jerseyNumber: 13,
+    state: "inactive",
+    password: "base$123",
+    roles: ['player']
+}
+
+module.exports = {
+    signupPlayer
+}
diff --git a/backend/test/player.test.js b/backend/test/player.test.js
new file mode 100644
index 0000000..11a862e
--- /dev/null
+++ b/backend/test/player.test.js
@@ -0,0 +1,45 @@
+const request = require("supertest")
+const {
+    expect,
+    describe,
+    test,
+} = require('@jest/globals');
+
+const app = require("../app")
+
+const { signupPlayer } = require("./data/player.test.data")
+const {set} = require("express/lib/application");
+
+describe("Test player creation, authentication and retrieval", () => {
+    test("should create a player", async () => {
+        let response = await request(app)
+            .post("/api/auth/login")
+            .send({
+                email: 'coach@example.com',
+                password: 'hash1234'
+            });
+        const user = response.body;
+
+        response = await request(app)
+            .post("/api/players")
+            .set('x-access-token', user.accessToken)
+            .send(signupPlayer);
+        expect(response.header['content-type']).toBe('application/json; charset=utf-8');
+        expect(response.statusCode).toBe(201);
+
+        const player = response.body;
+        response = await request(app)
+            .get(`/api/players/${player.id}`)
+            .set('x-access-token', user.accessToken);
+        expect(response.header['content-type']).toBe('application/json; charset=utf-8');
+        expect(response.statusCode).toBe(200);
+        expect(response.body).toEqual(player);
+
+        response = await request(app)
+            .get('/api/players')
+            .set('x-access-token', user.accessToken);
+        expect(response.header['content-type']).toBe('application/json; charset=utf-8');
+        expect(response.statusCode).toBe(200);
+        expect(response.body.filter(p => p.User.id === player.User.id).shift()).toEqual(player);
+    });
+});