I think he's biding his time to see if Tuchel will be there or not. Thought I read somewhere that he supported Bayern as a kid so not a move he'd make lightly I'd imagine. Plenty of opportunities to play across that United frontline though.
This would be my dream forward signing for United. I was pissed off that United didn't make a play for him when Bayern signed him for a pittance. Such a class player already and think he could be one of the best strikers in the world in a few...