The midfielder remains a top target for Manchester United.
Alves said: "Cesc's is a different case. He has already left here once. He left the club, made a name for himself and then returned. He wasn't at his best at the end of last season but we were all the same.
"Football is a collective sport and you cannot look for scapegoats. If he decides to stay here, I'll be delighted to continue having him as a team-mate. The squad respects him a lot."
He added: "It's up to him what he does, but I think he can bring a lot to this side. The team needs players of Cesc's quality to win trophies."
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