Seven-time Formula One champion Michael Schumacher is in critical condition after undergoing brain surgery following a weekend skiing accident that has stunned drivers, fans and athletes around the world.
The Grenoble University Hospital Center said the retired racing driver arrived at the clinic in a coma on Sunday and underwent immediate surgery for a serious head trauma.
It was not clear whether the 44-year-old Schumacher was still in a coma but the hospital statement, which was signed by a neurosurgeon, an anesthesiologist and Marc Penaud, the hospital's deputy director, said "he remains in a critical condition."
Schumacher fell while skiing off-piste in Meribel in the French Alps on Sunday morning and hit his head on a rock, according to a statement from the resort. Resort managers said he had been wearing a helmet and was conscious when rescuers first responded to the scene.
The Meribel resort initially said Schumacher had been taken to Grenoble for tests and authorities said his life was not in danger.
But the situation began to appear more serious when the resort said that orthopedic and trauma surgeon Gerard Saillant had travelled from Paris to the hospital in Grenoble to examine Schumacher. German news agency dpa said it was Saillant who operated on Schumacher when he broke his leg during a crash at the Silverstone race course in 1999.
Schumacher's 14-year-old son Mick was skiing with his father when the accident happened, the resort said.
ESPN F1 reported that Schumacher's wife and children were at the hospital, along with Jean Todt, his former Ferrari team boss and now president of motorsport's governing body, the FIA.
As news of the accident spread, Formula One drivers used social media to wish Schumacher a quick recovery.
His former Ferrari teammate Felipe Massa, who himself recovered from life-threatening head injuries sustained at the Hungarian Grand Prix in 2009, wrote on Instagram: "I am praying for you my brother!! I hope you have a quick recovery!! God bless you Michael."
British former world champion Jenson Button said posted that his "thoughts are with Michael Schumacher at this tough time. ... Michael more than anyone has the strength to pull through this."
Romain Grosjean of Lotus tweeted: "All our thoughts to Schumi and his family! Hope you will recover soon (hash)legend (hash)Schumi."
Schumacher is the most successful driver in Formula One history, with seven drivers' championships and 91 race wins. After initial success with the Benetton team, he moved to Ferrari and helped turn the Italian team into the sport's dominant force. After initially retiring in 2006, he made a comeback in 2010 and raced for three years with Mercedes.
