How to get the position of an Instantiated Object from an other script ?

I use Photon Network to Instantiate an object in the scene, but then I want to save it's position in an other script. try { //Load Player PlayerData data = SaveSystem.LoadPlayer();

             Vector3 position;
             position.x = data.position[0];
             position.y = data.position[1] + 2f;
             position.z = data.position[2];
 
             Debug.Log(position.ToString());
 
             GameObject player = PhotonNetwork.Instantiate(playerPrefab.name, position, Quaternion.identity);
             Debug.Log("Instantiated new Player from save file");
         }
         catch (System.Exception)
         {
             Debug.LogError("Couldn't find any save file, creating one");
             Vector3 randomPosition = new Vector3(Random.Range(minX, maxX), 3, Random.Range(minZ, maxZ));
             GameObject player = PhotonNetwork.Instantiate(playerPrefab.name, randomPosition, Quaternion.identity);
             throw;
         }

But the problem is that I can't get the variable "player" elsewhere, I get an error saying that :

 The name 'player' does not exist in the current context [Assembly-CSharp]

The other way I tried saving the position is by using the PlayerPrefab's position, but it never changes, and so doesn't match the player's real-time position