Brain surgeons battled throughout the night to save the 44-year-old following the horrific fall in the French resort of Meribel on Sunday.
He is still 'fighting for his life' and remains in a coma, said his anaesthetist Jean-Francois Payen, who added: 'We are working hour by hour'.
Speaking at a press conference at the Grenoble Hospital, in eastern France, Mr Payen said: 'We judge him to be in a very serious situation. We cannot predict the future for Michael Schumacher.





















