Jamaica’s Usain Bolt starts in his men’s 100m round 1 heat at the London 2012 Olympic Games at the Olympic Stadium

This won't take long. (Kai Pfaffenbach/Reuters)

This won’t take long. (Kai Pfaffenbach/Reuters)

Jamaica’s Usain Bolt (7) starts in his men’s 100m round 1 heat at the London 2012 Olympic Games at the Olympic Stadium August 4, 2012. Seen are (L-R) Cameroon’s Idrissa Adam, Nigeria’s Ogho-Oghene Egwero, Bolt and Britain’s James Dasaolu. REUTERS/Kai Pfaffenbach (BRITAIN – Tags: OLYMPICS SPORT ATHLETICS)