Michael Schumacher's wife Corinna broke down in tears last month while accepting a prestigious award in Germany on his behalf.
The racing legend, who is widely regarded as the greatest Formula 1 driver of all time, won seven world championships. He began his F1 career with Irish team Jordan and went on to drive for Benetton, Ferrari and Mercedes across two spells in the sport.
But just a year after retiring for a second time, he was involved in a horror skiing accident in December 2013 and was put in a medically induced coma. He has since regained consciousness and is living at his home in Switzerland, where he is said to be continuing his rehabilitation.