Suspect he's pretty much stopped from acting like a bellend, or at least slapped down very quickly, when he's with the squad - can't imagine the likes of Dunk, Murray or Stephens tolerating and bellendery from him (or anyone else for that matter). Wouldn't be at all surprised if he acts like a...
Can be mardy and petulant on the pitch (mostly because he cares) but suspect he's popular in the dressing room, and he busts a gut for the team. Doesn't make him a dickhead in this context.