He said: "Clearly, I hope Mascherano stays here. We are talking now about this but I have confidence because he tells me he wants to stay.
"I am confident he can be persuaded to stay here. When I spoke to Javier, he told me he wants that, so I have confidence that we will sign him.
"He is playing well and everyone knows he is a good player and there are not too many world-class holding midfielders around.
"He wants to stay, our supporters like him and we will try to keep him."