LONDON, ENGLAND - AUGUST 05: Runners leave the starters block to start the Men's 100m Final on Day 9 of the London 2012 Olympic Games at the Olympic Stadium on August 5, 2012 in London, England. (Photo by Adam Pretty/Getty Images)
LONDON, ENGLAND - AUGUST 05: Runners leave the starters block to start the Men's 100m Final on Day 9 of the London 2012 Olympic Games at the Olympic Stadium on August 5, 2012 in London, England. (Photo by Adam Pretty/Getty Images)