Atletico Madrid president Enrique Cerezo insists he's in the dark over the whereabouts of Diego Costa.

There's reports this week of an agreement over a fee for the Chelsea striker now being close.

However, Cerezo insisted last night that Atletico would not be negotiating for Costa until January.

"If his family moves to Madrid? I do not know. Diego Costa knows he is a Chelsea player and, until January, there is time to talk with his club," he said.

"Before January, we will not do anything."