It's just a wise PR statement, Bayern is a big rival when it comes to transfer for us, there is many players we are interested in and Bayern too. Sanches to Bayern might be one of many we lost to them...
when it comes to Sweini per se, he's too similar to Carrick, ageing midfielder, past it, good on the ball immobile as hell, there is no space for him in the squad, Herrera and Schneiderlin will do lots of running what he cant apart other things and obviously there is Pogson his way who will most certainly start, there is no reason to have 4 CM's on the bench and he is certainly one of the palyer who would like to spend the rest of his career playing, he can do that somewhere in Italy...
He was certainly not told to leave like what that asshole from Bayern says, I think it's the same with Mata - told that he no longer is no1 option and might find it hard to get gametime so he might want to leave for his own good