Sauber F1 Team driver Sergio Pérez was this evening visited by FIA President Jean Todt and FIA medical staff. The Sauber driver spoke to the President and also to doctors at Princesse Grace Hospital, who again confirmed that he had suffered a concussion but no more serious injuries in his accident during qualiying. Pérez will remain in hospital overnight and tomorrow.
Pérez will not drive in the FIA F1 2011 Monaco Grand Prix.Source: FIA Related news article
Concussion and sprained thigh for Pérez