The 24-year-old was competing in a biathlon sprint race - which combines cross-country skiing with shooting at targets - at Oberhof when his rifle sight became blocked by snow. As horrified spectators and TV viewers watched on, Graf turned the rifle around and aimed it at his mouth while he tried to blow away the obstruction. ... Graf was disqualified from the race, and British Eurosport expert Mike Dixon said the sport's governing body, the IBU, could hand him a lengthy ban.