diff --git a/client/components/Map.tsx b/client/components/Map.tsx
index 1af026b..0446c10 100644
--- a/client/components/Map.tsx
+++ b/client/components/Map.tsx
@@ -1,27 +1,52 @@
-import { StyleSheet } from 'react-native'
-import MapLibreGL, { Camera, FillLayer, LineLayer, MapView, PointAnnotation, RasterLayer, RasterSource, ShapeSource, UserLocation, UserTrackingMode } from '@maplibre/maplibre-react-native'
 import { FontAwesome5, MaterialIcons } from '@expo/vector-icons'
+import MapLibreGL, { Camera, FillLayer, LineLayer, MapView, PointAnnotation, RasterLayer, RasterSource, ShapeSource, UserLocation, UserTrackingMode } from '@maplibre/maplibre-react-native'
+import { useQuery } from '@tanstack/react-query'
 import { circle } from '@turf/circle'
-import { useLastOwnLocation, useLastPlayerLocations } from '@/hooks/useLocation'
 import React, { useMemo, useState } from 'react'
-import { PlayerLocation } from '@/utils/features/location/locationSlice'
+import { StyleSheet } from 'react-native'
+import { Button, Dialog, FAB, Portal, Text } from 'react-native-paper'
+import { useAuth } from '@/hooks/useAuth'
 import { useGame } from '@/hooks/useGame'
-import { FAB } from 'react-native-paper'
+import { useLastOwnLocation, useLastPlayerLocations } from '@/hooks/useLocation'
+import { isAuthValid } from '@/utils/features/auth/authSlice'
+import { Player } from '@/utils/features/game/gameSlice'
+import { PlayerLocation } from '@/utils/features/location/locationSlice'
 
 export default function Map() {
   const [followUser, setFollowUser] = useState(true)
+
   return (
     <>
-      <MapComponent followUser={followUser} setFollowUser={setFollowUser} />
-      <FAB
-          style={{ position: 'absolute', right: 25, bottom: 25 }}
-          icon={(props) => <MaterialIcons name={followUser ? 'my-location' : 'location-searching'} {...props} />}
-          onPress={() => setFollowUser(followUser => !followUser)} />
+      <MapWrapper followUser={followUser} setFollowUser={setFollowUser} />
+      <FollowUserButton key={'follow-userr-btn-component'} followUser={followUser} setFollowUser={setFollowUser} />
     </>
   )
 }
 
-function MapComponent({ followUser, setFollowUser }: { followUser?: boolean, setFollowUser: React.Dispatch<React.SetStateAction<boolean>> }) {
+type FollowUserProps = {
+  followUser: boolean,
+  setFollowUser: React.Dispatch<React.SetStateAction<boolean>>,
+}
+
+function MapWrapper({ followUser, setFollowUser }: FollowUserProps) {
+  const [displayedPlayerId, setDisplayedPlayerId] = useState<number | null>(null)
+  return (
+    <>
+      <MapComponent followUser={followUser} setFollowUser={setFollowUser} setDisplayedPlayerId={setDisplayedPlayerId} />
+      <Portal>
+        <PlayerLocationDialog displayedPlayerId={displayedPlayerId} onDismiss={() => setDisplayedPlayerId(null)} />
+      </Portal>
+    </>
+  )
+}
+
+type MapComponentProps = {
+  followUser?: boolean,
+  setFollowUser: React.Dispatch<React.SetStateAction<boolean>>,
+  setDisplayedPlayerId: React.Dispatch<React.SetStateAction<number | null>>
+}
+
+function MapComponent({ followUser, setFollowUser, setDisplayedPlayerId }: MapComponentProps) {
   MapLibreGL.setAccessToken(null)
   const userLocation = useLastOwnLocation()
   return (
@@ -44,22 +69,22 @@ function MapComponent({ followUser, setFollowUser }: { followUser?: boolean, set
       <RasterLayer id="railwaymap-layer" sourceID="railwaymap-source" style={{rasterOpacity: 0.7}} />
 
       <UserLocation animated={true} renderMode="native" androidRenderMode="compass" showsUserHeadingIndicator={true} />
-      <PlayerLocationsMarkers />
+      <PlayerLocationsMarkers setDisplayedPlayerId={setDisplayedPlayerId} />
     </MapView>
   )
 }
 
 
-function PlayerLocationsMarkers() {
+function PlayerLocationsMarkers({ setDisplayedPlayerId }: { setDisplayedPlayerId: React.Dispatch<React.SetStateAction<number | null>> }) {
   const game = useGame()
   const lastPlayerLocations = useLastPlayerLocations()
   return lastPlayerLocations ? lastPlayerLocations
     .filter(() => game.currentRunner === true || !game.gameStarted)
     .filter(playerLoc => playerLoc.playerId !== game.playerId)
-    .map(playerLoc => <PlayerLocationMarker key={`player-${playerLoc.playerId}-loc`} playerLocation={playerLoc} />) : <></>
+    .map(playerLoc => <PlayerLocationMarker key={`player-${playerLoc.playerId}-loc`} playerLocation={playerLoc} setDisplayedPlayerId={setDisplayedPlayerId} />) : <></>
 }
 
-function PlayerLocationMarker({ playerLocation }: { playerLocation: PlayerLocation }) {
+function PlayerLocationMarker({ playerLocation, setDisplayedPlayerId }: { playerLocation: PlayerLocation, setDisplayedPlayerId: React.Dispatch<React.SetStateAction<number | null>> }) {
   const accuracyCircle = useMemo(() => circle([playerLocation.longitude, playerLocation.latitude], playerLocation.accuracy, {steps: 64, units: 'meters'}), [playerLocation])
   return <>
     <ShapeSource
@@ -76,7 +101,8 @@ function PlayerLocationMarker({ playerLocation }: { playerLocation: PlayerLocati
         style={{lineOpacity: 0.4, lineColor: 'red'}}
         aboveLayerID={`accuracy-radius-fill-${playerLocation.playerId}`} />
     <PointAnnotation id={`player-location-marker-${playerLocation.playerId}`}
-        coordinate={[playerLocation.longitude, playerLocation.latitude]}>
+        coordinate={[playerLocation.longitude, playerLocation.latitude]}
+        onSelected={() => { setDisplayedPlayerId(playerLocation.playerId) }}>
       <FontAwesome5 name="map-marker-alt" size={24} color="red" />
     </PointAnnotation>
   </>
@@ -88,3 +114,56 @@ const styles = StyleSheet.create({
     alignSelf: 'stretch',
   }
 })
+
+function FollowUserButton({ followUser, setFollowUser }: FollowUserProps) {
+  return (
+    <FAB
+      key={'follow-user-btn'}
+      style={{ position: 'absolute', right: 25, bottom: 25 }}
+      icon={(props) => <MaterialIcons name={followUser ? 'my-location' : 'location-searching'} {...props} />}
+      onPress={() => setFollowUser(followUser => !followUser)} />
+  )
+}
+
+function PlayerLocationDialog({ displayedPlayerId, onDismiss }: { displayedPlayerId: number | null, onDismiss: () => void }) {
+  const auth = useAuth()
+  const lastPlayerLocations = useLastPlayerLocations()
+  const playersQuery = useQuery({
+      queryKey: ['get-players', auth.token],
+      queryFn: () => fetch(`${process.env.EXPO_PUBLIC_TRAINTRAPE_MOI_SERVER}/players/`, {
+        headers: { "Authorization": `Bearer ${auth.token}` }}
+      ).then(resp => resp.json()),
+      enabled: isAuthValid(auth),
+      initialData: { data: [], meta: { currentPage: 0, lastPage: 0, nextPage: 0, prevPage: 0, total: 0, totalPerPage: 0 } },
+    })
+  const displayedPlayerLoc = useMemo(() => {
+    return lastPlayerLocations.find(loc => loc.playerId === displayedPlayerId)
+  }, [displayedPlayerId, lastPlayerLocations])
+  const displayedPlayerName = useMemo(() => {
+    if (!playersQuery.isSuccess || !displayedPlayerId)
+      return "Chargement…"
+    const player: Player | undefined = playersQuery.data.data.find((player: Player) => player.id === displayedPlayerId)
+    if (!player)
+      return "Chargement…"
+    return player.name
+  }, [displayedPlayerId, playersQuery])
+
+  return (
+    <Dialog visible={displayedPlayerId !== null} onDismiss={onDismiss}>
+      <Dialog.Title>{displayedPlayerName}</Dialog.Title>
+      <Dialog.Content>
+        <Text>
+          Dernière position : {new Date(displayedPlayerLoc?.timestamp ?? 0).toLocaleString()}
+        </Text>
+        <Text>
+          Précision : {displayedPlayerLoc?.accuracy.toPrecision(3)} m
+        </Text>
+      </Dialog.Content>
+      <Dialog.Actions>
+        <Button onPress={onDismiss}>
+          Fermer
+        </Button>
+      </Dialog.Actions>
+    </Dialog>
+  )
+}
diff --git a/client/utils/features/game/gameSlice.ts b/client/utils/features/game/gameSlice.ts
index a91b2ce..9ef7205 100644
--- a/client/utils/features/game/gameSlice.ts
+++ b/client/utils/features/game/gameSlice.ts
@@ -20,6 +20,13 @@ export interface PenaltyPayload {
   penaltyEnd: number | null
 }
 
+export interface Player {
+  id: number
+  name: string
+  money: number
+  activeChallengeId: number | null
+}
+
 export interface GameState {
   playerId: number | null
   runId: number | null