Update | Michael Schumacher in critical condition after skiing accident
Formula One great undergoes surgery for serious head trauma

Michael Schumacher, the retired seven-time Formula One champion who often braved death on the tracks, remained in a critical condition Monday after an off-piste skiing accident in the French Alps.
The German racing legend, who turns 45 at the end of the week, had been skiing off-piste on Sunday with his 14-year-old son in the upmarket Meribel resort when he fell and hit his head on a rock, prompting an urgent evacuation by helicopter.
In an update to reporters on Monday, doctors at the hospital in the southeastern city of Grenoble where he is being treated said it was still too early to make a prognosis on the famous patient.
“He is in critical condition. He is in intensive care, his condition is very serious,” Jean-Francois Payen, head of the intensive care unit, told reporters.
Watch: Schumacher in coma, 'critical' after France ski accident