File - Michael Schumacher announces his retirement from Formula One at the end of the 2012 season during a press conference at the Suzuka Circuit venue for the Japanese Formula One Grand Prix in Suzuka, Japan, in this Thursday, Oct. 4, 2012 file photo. Seven-time Formula One champion Michael Schumacher was hospitalized with a head injury Sunday Dec. 29 2013, after a skiing accident in the French Alps, French authorities and his manager said. The French Mountain Gendarmerie said Schumacher was wearing a helmet when he had a hard fall at the Meribel resort and that he sustained a "relatively serious" head injury. (AP Photo/Itsuo Inouye, file)