He plays as an attacking midfielder, a false nine or a CF these days.
If there is a position he is least likely to play its going to be left wing and that got proved last time due to martial & Rashford.
He won't play ahead of Martial, Rashford or Pogba in such position that's my point. He will be either a winger or a backup, and it's illogical to pay 35m for a backup player.