(FILES) - Picture taken on September 10, 2006 shows then German Ferrari driver Michael Schumacher celebrating on the podium of the Monza racetrack after the Italian Formula One Grand prix, in Monza. Michael Schumacher has signed a one-year deal to return to Formula One racing with Mercedes GP for the 2010 season, Bild.de reported on December 22, 2009. AFP PHOTO  PATRICK HERTZOG (Photo credit should read PATRICK HERTZOG/AFP via Getty Images)