A Yorkshire Terrier is inspected by his master for his contest at the dog show in Dortmund, Germany, Friday, May 11, 2012. (AP Photo/Martin Meissner)
Fireworks explode over the stadium during the Closing Ceremony at the 2012 Summer Olympics, Sunday, Aug. 12, 2012, in London. (AP Photo/Martin Meissner)
United States' Manteo Mitchell competes in a 4x400-meter relay heat during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Thursday, Aug. 9, 2012. Manteo had half a lap to go in the first leg of the 4x400-meter relay preliminaries Thursday and a choice to make: keep running or stop and lose the race. To him, it was never much of a choice. He finished the lap and limped to the side to watch the Americans finish the race and qualify easily for the final. A few hours later, doctors confirmed what he suspected: He had run the last 200 meters with a broken left fibula. (AP Photo/Martin Meissner)
United States' Manteo Mitchell competes in a 4x400-meter relay heat during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Thursday, Aug. 9, 2012. Manteo had half a lap to go in the first leg of the 4x400-meter relay preliminaries Thursday and a choice to make: keep running or stop and lose the race. To him, it was never much of a choice. He finished the lap and limped to the side to watch the Americans finish the race and qualify easily for the final. A few hours later, doctors confirmed what he suspected: He had run the last 200 meters with a broken left fibula. (AP Photo/Martin Meissner)
United States' Allyson Felix celebrates her win in the women's 200-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Wednesday, Aug. 8, 2012. (AP Photo/Martin Meissner)
United States' Allyson Felix celebrates her win in the women's 200-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Wednesday, Aug. 8, 2012. (AP Photo/Martin Meissner)
United States' LaShawn Merritt places ice onto his injured hamstring following his heat of the men's 400 meters during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Saturday, Aug. 4, 2012. (AP Photo/Martin Meissner)
United States' LaShawn Merritt places ice onto his injured hamstring following his heat of the men's 400 meters during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Saturday, Aug. 4, 2012. (AP Photo/Martin Meissner)
A bottle lies on the track behind the starting blocks after being thrown from the crowd as, from left, Jamaica's Usain Bolt, United States' Justin Gatlin, Jamaica's Yohan Blake, United States' Tyson Gay and Jamaica's Asafa Powell compete in the men's 100-meter final the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Sunday, Aug. 5, 2012. (AP Photo/Martin Meissner)
