diff --git a/src/__tests__/chat/chatService/addReaction.test.ts b/src/__tests__/chat/chatService/addReaction.test.ts
index dfc18f0b9..c9ce919f5 100644
--- a/src/__tests__/chat/chatService/addReaction.test.ts
+++ b/src/__tests__/chat/chatService/addReaction.test.ts
@@ -7,6 +7,7 @@ describe('ChatService.addReaction() test suite', () => {
   let chatService: ChatService;
   const chatMessageBuilder = ChatBuilderFactory.getBuilder('ChatMessage');
   const chatModel = ChatModule.getChatModel();
+  const mockSenderId = '60f7c2d9a2d3c7b7e56d01df';
 
   const senderId = new ObjectId();
   const reactPlayerName = 'ReactMan420';
@@ -27,11 +28,12 @@ describe('ChatService.addReaction() test suite', () => {
       chat._id.toString(),
       reactPlayerName,
       '👍',
+      mockSenderId,
     );
 
     expect(err).toBeNull();
     expect(updated.reactions).toEqual([
-      { playerName: reactPlayerName, emoji: '👍' },
+      { playerName: reactPlayerName, emoji: '👍', sender_id: mockSenderId },
     ]);
   });
 
@@ -42,11 +44,12 @@ describe('ChatService.addReaction() test suite', () => {
       chat._id.toString(),
       reactPlayerName,
       '😂',
+      mockSenderId,
     );
 
     expect(err).toBeNull();
     expect(updated.reactions).toEqual([
-      { playerName: reactPlayerName, emoji: '😂' },
+      { playerName: reactPlayerName, emoji: '😂', sender_id: mockSenderId },
     ]);
   });
 
@@ -57,6 +60,7 @@ describe('ChatService.addReaction() test suite', () => {
       chat._id.toString(),
       reactPlayerName,
       '',
+      mockSenderId,
     );
 
     expect(err).toBeNull();
@@ -69,6 +73,7 @@ describe('ChatService.addReaction() test suite', () => {
       fakeId,
       'NoPlayer',
       '🔥',
+      mockSenderId,
     );
 
     expect(updated).toBeNull();
diff --git a/src/__tests__/chat/data/builder/ReactionDtoBuilder.ts b/src/__tests__/chat/data/builder/ReactionDtoBuilder.ts
index a3fb92007..d35b3f0fa 100644
--- a/src/__tests__/chat/data/builder/ReactionDtoBuilder.ts
+++ b/src/__tests__/chat/data/builder/ReactionDtoBuilder.ts
@@ -5,6 +5,7 @@ export default class ReactionDtoBuilder implements IDataBuilder<ReactionDto> {
   private readonly base: ReactionDto = {
     playerName: 'TestPlayer420',
     emoji: '👍',
+    sender_id: '60f7c2d9a2d3c7b7e56d01df',
   };
 
   build(): ReactionDto {
diff --git a/src/chat/dto/reaction.dto.ts b/src/chat/dto/reaction.dto.ts
index 26e7b234a..3ca58b450 100644
--- a/src/chat/dto/reaction.dto.ts
+++ b/src/chat/dto/reaction.dto.ts
@@ -17,4 +17,11 @@ export class ReactionDto {
    */
   @Expose()
   emoji: string;
+
+  /**
+   * Player id of the user
+   * @example "123456789"
+   */
+  @Expose()
+  sender_id: string;
 }
diff --git a/src/chat/schema/reaction.schema.ts b/src/chat/schema/reaction.schema.ts
index 1e7cc5387..fa2e1edf4 100644
--- a/src/chat/schema/reaction.schema.ts
+++ b/src/chat/schema/reaction.schema.ts
@@ -6,4 +6,7 @@ export class Reaction {
 
   @Prop({ type: String, required: true })
   emoji: string;
+
+  @Prop({ type: String, required: true })
+  sender_id: string;
 }
diff --git a/src/chat/service/baseChat.service.ts b/src/chat/service/baseChat.service.ts
index 339359103..987196113 100644
--- a/src/chat/service/baseChat.service.ts
+++ b/src/chat/service/baseChat.service.ts
@@ -113,6 +113,7 @@ export abstract class BaseChatService {
       reaction.message_id,
       client.user.name,
       reaction.emoji,
+      client.user.playerId,
     );
 
     if (error) {
diff --git a/src/chat/service/chat.service.ts b/src/chat/service/chat.service.ts
index 74a7d47d2..80b832bc9 100644
--- a/src/chat/service/chat.service.ts
+++ b/src/chat/service/chat.service.ts
@@ -1,6 +1,5 @@
 import { Injectable } from '@nestjs/common';
 import { InjectModel } from '@nestjs/mongoose';
-import {} from '../../common/base/decorator/AddBasicService.decorator';
 import { ChatMessage } from '../schema/chatMessage.schema';
 import { Model } from 'mongoose';
 import BasicService from '../../common/service/basicService/BasicService';
@@ -16,6 +15,7 @@ import { SEReason } from '../../common/service/basicService/SEReason';
 
 @Injectable()
 export class ChatService {
+  private readonly basicService: BasicService;
   public constructor(
     @InjectModel(ChatMessage.name)
     public readonly model: Model<ChatMessage>,
@@ -23,10 +23,8 @@ export class ChatService {
     this.basicService = new BasicService(model);
   }
 
-  private readonly basicService: BasicService;
-
   /**
-   * Creates a message in database.
+   * Creates a message in the database.
    *
    * @param message - Message data to create.
    * @returns Created message.
@@ -38,17 +36,19 @@ export class ChatService {
   }
 
   /**
-   * Adds an reaction to chat message.
+   * Adds a reaction to the chat message.
    *
    * @param messageId - ID of the message reaction is to.
    * @param playerName - Name of the player who reacted.
    * @param emoji - String representation of the emoji.
+   * @param sender_id - Unique ID of the player reacting.
    * @returns Message with added reaction.
    */
   async addReaction(
     messageId: string,
     playerName: string,
     emoji: string,
+    sender_id: string,
   ): Promise<IServiceReturn<ChatMessageDto>> {
     const [message, error] =
       await this.basicService.readOneById<ChatMessageDto>(messageId);
@@ -59,7 +59,7 @@ export class ChatService {
       (r) => r.playerName !== playerName,
     );
 
-    if (emoji) message.reactions.push({ playerName, emoji });
+    if (emoji) message.reactions.push({ playerName, emoji, sender_id });
 
     const [, updateError] = await this.basicService.updateOneById(
       message._id,
@@ -72,7 +72,7 @@ export class ChatService {
   }
 
   /**
-   * Retrieves messages from database.
+   * Retrieves messages from the database.
    *
    * @param options - Database query options.
    * @returns An array of chat messages.
@@ -88,7 +88,7 @@ export class ChatService {
   }
 
   /**
-   * Updates a ChatMessage by its _id in DB. The _id field is read-only and must be found from the parameter
+   * Updates a ChatMessage by its _id in the DB. The _id field is read-only and must be found from the parameter
    *
    * @param chat - The data needs to be updated of the ChatMessage.
    * @returns _true_ if ChatMessage was updated successfully, _false_ if nothing was updated for the ChatMessage,