Manchester United manager Louis van Gaal has refused to rule out the possibility of signing goalkeeper Victor Valdes.
Manchester City boss Manuel Pellegrini says he is confident that England goalkeeper Joe Hart will sign a new contract.
Bayern Munich have confirmed Mario Gotze will join them in July.
The Bundesliga champions are prepared to meet the Germany attacking midfielder's £32million release clause in his contract with Borussia Dortmund.
Bayern announced the signing in a statement on their official website after Dortmund earlier revealed the player had told them he wanted to make the move.
The Dortmund statement read: "Mario Goetze's agent Volker Struth told us a few days ago that the player wishes to make use of his release clause and on July 1, 2013 move to Bayern Munich."
Dortmund chief executive Hans-Joachim Watzke said: "We are obviously disappointed beyond measure, but emphasise that both Mario and his advisers have behaved within the terms of the contract."