diff --git a/homeassistant/components/squeezebox/__init__.py b/homeassistant/components/squeezebox/__init__.py
index 8bd0e2fca52..c6cb04b5ffb 100644
--- a/homeassistant/components/squeezebox/__init__.py
+++ b/homeassistant/components/squeezebox/__init__.py
@@ -1,7 +1,7 @@
 """The Squeezebox integration."""
 
 from asyncio import timeout
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from datetime import datetime
 from http import HTTPStatus
 import logging
@@ -37,8 +37,6 @@ from .const import (
     DISCOVERY_INTERVAL,
     DISCOVERY_TASK,
     DOMAIN,
-    KNOWN_PLAYERS,
-    KNOWN_SERVERS,
     SERVER_MANUFACTURER,
     SERVER_MODEL,
     SERVER_MODEL_ID,
@@ -73,6 +71,7 @@ class SqueezeboxData:
 
     coordinator: LMSStatusDataUpdateCoordinator
     server: Server
+    known_player_ids: set[str] = field(default_factory=set)
 
 
 type SqueezeboxConfigEntry = ConfigEntry[SqueezeboxData]
@@ -187,16 +186,12 @@ async def async_setup_entry(hass: HomeAssistant, entry: SqueezeboxConfigEntry) -
 
     entry.runtime_data = SqueezeboxData(coordinator=server_coordinator, server=lms)
 
-    # set up player discovery
-    known_servers = hass.data.setdefault(DOMAIN, {}).setdefault(KNOWN_SERVERS, {})
-    known_players = known_servers.setdefault(lms.uuid, {}).setdefault(KNOWN_PLAYERS, [])
-
     async def _player_discovery(now: datetime | None = None) -> None:
         """Discover squeezebox players by polling server."""
 
         async def _discovered_player(player: Player) -> None:
             """Handle a (re)discovered player."""
-            if player.player_id in known_players:
+            if player.player_id in entry.runtime_data.known_player_ids:
                 await player.async_update()
                 async_dispatcher_send(
                     hass, SIGNAL_PLAYER_REDISCOVERED, player.player_id, player.connected
@@ -207,7 +202,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: SqueezeboxConfigEntry) -
                     hass, entry, player, lms.uuid
                 )
                 await player_coordinator.async_refresh()
-                known_players.append(player.player_id)
+                entry.runtime_data.known_player_ids.add(player.player_id)
                 async_dispatcher_send(
                     hass, SIGNAL_PLAYER_DISCOVERED, player_coordinator
                 )
diff --git a/homeassistant/components/squeezebox/const.py b/homeassistant/components/squeezebox/const.py
index 9d78605aee1..091ef4d1bbd 100644
--- a/homeassistant/components/squeezebox/const.py
+++ b/homeassistant/components/squeezebox/const.py
@@ -4,8 +4,6 @@ CONF_HTTPS = "https"
 DISCOVERY_TASK = "discovery_task"
 DOMAIN = "squeezebox"
 DEFAULT_PORT = 9000
-KNOWN_PLAYERS = "known_players"
-KNOWN_SERVERS = "known_servers"
 PLAYER_DISCOVERY_UNSUB = "player_discovery_unsub"
 SENSOR_UPDATE_INTERVAL = 60
 SERVER_MANUFACTURER = "https://lyrion.org/"
diff --git a/homeassistant/components/squeezebox/media_player.py b/homeassistant/components/squeezebox/media_player.py
index 8cf945cd7e9..f37faa4e115 100644
--- a/homeassistant/components/squeezebox/media_player.py
+++ b/homeassistant/components/squeezebox/media_player.py
@@ -60,8 +60,6 @@ from .const import (
     DEFAULT_VOLUME_STEP,
     DISCOVERY_TASK,
     DOMAIN,
-    KNOWN_PLAYERS,
-    KNOWN_SERVERS,
     SERVER_MANUFACTURER,
     SERVER_MODEL,
     SERVER_MODEL_ID,
@@ -316,9 +314,9 @@ class SqueezeBoxMediaPlayerEntity(SqueezeboxEntity, MediaPlayerEntity):
 
     async def async_will_remove_from_hass(self) -> None:
         """Remove from list of known players when removed from hass."""
-        known_servers = self.hass.data[DOMAIN][KNOWN_SERVERS]
-        known_players = known_servers[self.coordinator.server_uuid][KNOWN_PLAYERS]
-        known_players.remove(self.coordinator.player.player_id)
+        self.coordinator.config_entry.runtime_data.known_player_ids.remove(
+            self.coordinator.player.player_id
+        )
 
     @property
     def volume_level(self) -> float | None: