Ander Herrera could be on the move due to contract negotiations stalling. Manchester United are believed to be unwilling to pay the midfielder's extortionate wage demands, with his contract running out this summer. French side PSG are said to be interested in his signature.
In a similar situation is goalkeeper David de Gea. PSG are also said to be after him, while his contract is not being renewed because the Red Devils will not meet his wage demands. With PSG willing to pay him 21 million euros a season, he could well be on the move.
Juan Mata's contract also runs out this summer, and there does not appear to have been any progress with regards to a contract renewal. The 30 year-old playmaker is being followed by Barcelona, and a move to the Camp Nou is looking increasingly probable.
This is all speculation, however, and all three players could still potentially be playing their football in Manchester next season.