Your decisions are only for you, wait until the season starts to see who Bayern coach plays in attack.
Sadio Mane played the number nine role previous years at Southampton and Liverpool.
Why do you doubt if he can still perform at a top level ?
Bayern Coach Will take he's finally decisions.
I think Sadio Mane will play the role of Lewandowski who is now officially part of Barcelona. Besides, I have no doubts about his quality after what he has given Liverpool so far. But of course there will be a process he has to go through to make him a player who really replaces the role that Lewandowski has played so far.