Lolo Jones of the U.S. clears a hurdle with Canada’s Phylicia George in their round 1 women’s 100m hurdles heat during the London 2012 Olympic Games at the Olympic Stadium

Lolo Jones crossed the 100-meter hurdles finish line in 12.68 seconds, the second-fastest time of 24 hurdlers who advanced to Tuesday’s semifinals. (Reuters -- Dylan Martinez)

Lolo Jones crossed the 100-meter hurdles finish line in 12.68 seconds, the second-fastest time of 24 hurdlers who advanced to Tuesday’s semifinals. (Reuters — Dylan Martinez)

Lolo Jones (L) of the U.S. clears a hurdle with Canada’s Phylicia George in their round 1 women’s 100m hurdles heat during the London 2012 Olympic Games at the Olympic Stadium August 6, 2012. REUTERS/Dylan Martinez (BRITAIN – Tags: OLYMPICS SPORT ATHLETICS)