diff --git a/pong/realtime_pong_game/consumers.py b/pong/realtime_pong_game/consumers.py
index f8f451b..7333022 100644
--- a/pong/realtime_pong_game/consumers.py
+++ b/pong/realtime_pong_game/consumers.py
@@ -1,7 +1,7 @@
 import json
 from channels.generic.websocket import AsyncWebsocketConsumer
 from django.contrib.auth.models import AnonymousUser
-from realtime_pong_game.roommanager import RoomManager
+from realtime_pong_game.roommanager import RoomManager, RoomState
 
 
 class PlayerConsumer(AsyncWebsocketConsumer):
@@ -33,7 +33,7 @@ async def connect(self):
         )
         self.user_nickname = self.user.nickname
         # if url path is not valid, close connection
-        if self.room_name == None or self.user_role == None:
+        if self.room_name is None or self.user_role is None:
             await self.send(
                 text_data=json.dumps(
                     {
@@ -51,7 +51,7 @@ async def connect(self):
             self.room_manager = RoomManager.host_room(
                 self.room_name, self.number_of_players
             )
-            if self.room_manager == None:
+            if self.room_manager is None:
                 await self.send(
                     text_data=json.dumps(
                         {
@@ -66,7 +66,7 @@ async def connect(self):
         # if user want to guest, confirm that room can be entered. if not, connection closed.
         elif self.user_role == "guest":
             self.room_manager = RoomManager.guest_room(self.room_name)
-            if self.room_manager == None:
+            if self.room_manager is None:
                 await self.send(
                     text_data=json.dumps(
                         {
@@ -108,6 +108,7 @@ async def connect(self):
                     }
                 )
             )
+            del self.room_manager
             await self.close()
             return
 
@@ -135,6 +136,8 @@ async def receive(self, text_data=None, bytes_data=None):
                     }
                 )
             )
+            if self.room_manager.room_state == RoomState.In_Game:
+                await self.room_manager.pong_game.on_user_connected()
             return
         await self.room_manager.on_receive_user_message(self.user, message_json)
 
diff --git a/pong/realtime_pong_game/ponggame.py b/pong/realtime_pong_game/ponggame.py
index 79c57a8..58a67b4 100644
--- a/pong/realtime_pong_game/ponggame.py
+++ b/pong/realtime_pong_game/ponggame.py
@@ -60,6 +60,19 @@ def __init__(self, room_name):
         self.player1_score = 0
         self.player2_score = 0
 
+    async def on_user_connected(self):
+        await self.send_message_to_group(
+            "send_game_information",
+            {
+                "sender": "PongGame",
+                "type": "player-scored",
+                "contents": {
+                    "player1": {"name": self.player1_name, "score": self.player1_score},
+                    "player2": {"name": self.player2_name, "score": self.player2_score},
+                },
+            },
+        )
+
     # execture pong game and return the scores
     def execute(self, player1_name, player2_name):
         self.ball = Ball(FIELD_WIDTH / 2, FIELD_HEIGHT / 2)
@@ -67,6 +80,8 @@ def execute(self, player1_name, player2_name):
         self.player2_paddle = Paddle()
         self.player1_score = 0
         self.player2_score = 0
+        self.player1_name = player1_name
+        self.player2_name = player2_name
         while self.player1_score < 5 and self.player2_score < 5:
             async_to_sync(self.send_message_to_group)(
                 "send_game_information",
diff --git a/pong/realtime_pong_game/roommanager.py b/pong/realtime_pong_game/roommanager.py
index 7808683..c25067f 100644
--- a/pong/realtime_pong_game/roommanager.py
+++ b/pong/realtime_pong_game/roommanager.py
@@ -62,6 +62,7 @@ def __init__(self, room_name, number_of_players):
         self.room_name = room_name
         self.room_state = RoomState.Not_All_Participants_Connected
         self.participants = []
+        self.participants_connection = dict()
         self.participant_nickname_dict = dict()
         self.participants_state = dict()
         self.max_of_participants = int(number_of_players)
@@ -79,11 +80,19 @@ def set_participant_state(self, participant, new_participant_state):
 
     def add_new_participant(self, new_participant, new_participant_nickname):
         with self.instance_lock:
+            if (
+                new_participant in self.participants
+                and new_participant in self.participants_connection
+                and self.participants_connection[new_participant] is False
+            ):
+                self.participants_connection[new_participant] = True
+                return True
             if self.room_state != RoomState.Not_All_Participants_Connected:
                 return False
             if new_participant in self.participants:
                 return False
             self.participants.append(new_participant)
+            self.participants_connection[new_participant] = True
             self.participant_nickname_dict[new_participant] = (
                 f"{new_participant_nickname}"
             )
@@ -107,7 +116,10 @@ def remove_participant(self, participant):
     async def on_user_connected(self, user, user_nickname):
         if not self.add_new_participant(user, user_nickname):
             return False
-        if len(self.participants) == self.max_of_participants:
+        if (
+            len(self.participants) == self.max_of_participants
+            and self.room_state == RoomState.Not_All_Participants_Connected
+        ):
             self.set_room_state(RoomState.Display_Tournament)
             await self.send_room_state_to_group()
             asyncio.new_event_loop().run_in_executor(
@@ -119,7 +131,10 @@ async def on_user_connected(self, user, user_nickname):
 
     # delete user from Room
     async def on_user_disconnected(self, participant):
-        self.remove_participant(participant)
+        if participant in self.participants_connection:
+            self.participants_connection[participant] = False
+        if self.room_state == RoomState.Not_All_Participants_Connected:
+            self.remove_participant(participant)
         if len(self.participants) == 0:
             RoomManager.remove_instance(self.room_name)
         return True