And Sanches confirmed after Bayern's 3-2 win against Chelsea today that he is looking to leave the club this summer to find more playing opportunities.
The 19-year-old, victor of the 2016 Golden Boy award and voted best young player at Euro 2016, has struggled to meet expectations since his move last summer from Benfica, when Bayern successfully beat off competition from United for his signature.
That's a little bit how we feel this morning seeing United linked to Renato Sanches as a midfield target ahead of Nemanja Matic.
Bayern boss Carlo Ancelotti previously revealed the possibility of Sanches leaving, claiming a loan move could be appropriate as Sanches hopes to pick up more minutes.
The defender sustained the problem during last Saturday's pre-season friendly against AC MIlan in the Far East, and was substituted from the field of play after half an hour as a result.
"AC Milan is an interesting option", Sanches added.
"If a club are interested in a Bayern player, they must be ready to deal with significant economic figures".
Despite not deciding on Sanches, the Bayern boss has conceded that Sanches could be on his way out this summer. "I'm young, I want to play a lot".
Having failed to make a great impression under Ancelotti in the Bundesliga last term, the manager admits there is a chance he could leave.
'So if we feel he is not going to get enough game time, then we will loan him out, or maybe even sell him.