Atletico Madrid president Enrique Cerezo admits their summer market campaign is not over.
He said: "Everybody knows what we're missing, the 50,000 who come to see us at the stadium know that we have the best attack in Europe, but we do not have that player who can make the final pass to Forlan, Aguero or Sinama.
"We're missing a No10 to provide such play.
"Those responsible will be working on it. There is time before the transfer deadline closes at the end of the month for another signing."