Pawn spawned from dedicated server


I ve created a tiny project, with a specific playerController, and a specific pawn.
When I run a dedicated player and 3 players through play button… on client side, I saw three static mesh from pawn (2 regular clients, and one server).
How can I ask, that to not spawn pawn for server?

Finally, I put to None the default Pawn, and on server side, I spawn for each player controller the pawn, and I affect the pawn to the player controller.