Michael Phelps of the United States gestures after his team winning the men's 4x100m medley relay final at the Beijing 2008 Olympic Games in the National Aquatics Center, also known as the Water Cube in Beijing, China, Aug. 17, 2008. Phelps won his eighth gold medal at the Beijing Olympics swimming events on Sunday, breaking Mark Spitz's record of seven gold medals won at a single Games in 1972.