Bayern Munich captain Philipp Lahm says there is no guarantee that Thomas Muller will not follow Bastian Schweinsteiger to Manchester United.

Muller, 25, has been linked with United this summer and on Monday German TV channel Sport 1 claimed that the English club had offered €100 million for the Bayern attacker, while The Guardian has said he is open to a move.

United have identified Barcelona's Pedro and Bayern's Muller as top targets as they look to bring in a new forward, sources told ESPN FC at the weekend.

Speaking at a news conference in Shanghai on Tuesday, Lahm, 31, admitted that it is conceivable that the Germany international could leave for the Premier League.

"In football you can imagine everything," he said. "It's not my decision. In football, it goes so, so quickly.

"It's not always only up to the player. There are clubs who get players, players go.