Pep Guardiola alluded to the possibility of John Stones leaving Manchester City this summer.
Stones has struggled with injuries and hasn't started a Premier League match since January.
"On the transfer market we speak at the end of the season," Guardiola told a news conference on Tuesday.
"I've said many times, I'm more than delighted with John as a person, as a professional, everything. What I want is the best for him. We'll speak at the end of the season about what is going to happen."
Stones arrived from Everton in 2016 for £47.5 million.