London Olympics: Aug. 10



United States' Justin Gatlin crosses the finish line in a men's 4 x 100-meter relay heat during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. (AP Photo/Martin Meissner)

United States' Justin Gatlin crosses the finish line in a men's 4 x 100-meter relay heat during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. (AP Photo/Martin Meissner)