In sport injuries happen. They are tough things to cope with. Mark Cavendish has had many injuries as a professional cyclist . Those of us who have seen him race at races such as the Tour de France, can probably remember some of those dramatic crashes. Seeing images of him later with deep grazes, bruises or broken bones. Most injuries in sport are caused by forceful impacts or when we have pushed our body too far, when something inside goes snap. Cavendish's interview on BBC