Bayern Munich sporting director Matthias Sammer admits midfielder Bastian Schweinsteiger could leave the club in the summer.
A target for Manchester United, the 30-year-old made it clear at the start of the week that his desire is to stay in the German Bundesliga.
But Sammer says "nothing is excluded".
"Basically, nothing is excluded," he said.
"It's a crazy world.
"He has clearly expressed that he is an important part of the team, but let's see. We're still waiting."