(FILES) A file photo taken on December 30, 2013 shows a message in Dutch reading "Good convalescence" ( "Veel Beterschap!" ) on a fan's cap hanging on the fence of the karting circuit owned by German former Formula One champion Michael Schumacher in Kerpen near Cologne, western Germany. - Absolute reference of the Formula 1, Michael Schumacher, will turn 50 years old on January 3, 2019. The seven-time world champion was victim five years ago, on December 29, 2013 of a ski accident, leaving him in a precarious state of health. The family never wanted to communicate on the matter but according to renowned neurologists, the German pilot, technically out of the coma, might be in a vegetative state. (Photo by Patrik STOLLARZ / AFP)