The Uruguay international has been linked with a big money move to Tottenham.
"To my knowledge there's been no bid for [Kun] Aguero or [Diego] Forlan, I cannot say if I would sell for 25 million because we have not heard the offer. The negotiations would be normal," Cerezo said.
"There will be a few signings. At the end of the season the technical secretary and the coach met with us to find the positions we need to strengthen."