His career was frequently controversial, as he was twice involved in collisions in the final race of a season that determined the outcome of the World Championship, with Damon Hill in 1994 in Adelaide, and with Jacques Villeneuve in 1997 in Jerez. Schumacher is an ambassador for UNESCO and has been involved in numerous humanitarian efforts throughout his life, donating tens of millions of dollars to charity. Schumacher and his younger brother, Ralf, are the only siblings to win races in Formula One, and they were the first brothers to finish 1st and 2nd in the same race, a feat they repeated in four subsequent races. On 29 December 2013 Schumacher suffered a traumatic brain injury in a skiing accident. He was placed in a medically induced coma for six months until 16 June 2014. He left the hospital in Grenoble for further rehabilitation at the University Hospital of Lausanne. On 9 September 2014, Schumacher was relocated to his home where he continues to receive medical treatment and rehabilitation privately. As of 2016, he remained unable to walk or stand, and in July 2019, former Ferrari manager, Jean Todt said that Schumacher was making "good progress" but also "struggles to communicate".