Olympics Day 8 – Athletics

Britain's David Greene (left) and American Kerron Clement (right) advanced to the finals of the men's 400-meter hurdles. (Michael Steele/Getty Images)

Britain’s David Greene (left) and American Kerron Clement (right) advanced to the finals of the men’s 400-meter hurdles. (Michael Steele/Getty Images)

LONDON, ENGLAND – AUGUST 04: (L-R) David Greene of Great Britain and Kerron Clement of the United States compete in the Men’s 400m Hurdles Semi Finalon Day 8 of the London 2012 Olympic Games at Olympic Stadium on August 4, 2012 in London, England. (Photo by Michael Steele/Getty Images)