Jamaica's Usain Bolt, third from left, crosses the finish line to win gold ahead of United State's Ryan Bailey, left, Jamaica's Yohan Blake, third from right, United States' Tyson Gay, second from right, and Trinidad's Richard Thompson in the men's 100-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Sunday, Aug. 5, 2012. (AP Photo/Matt Dunham)