American swimmer Michael Phelps made history at the 2008 Beijing Olympics, becoming the first athlete to win eight gold medals at a single Olympic Games. He now has has his sights on the London Olympics hoping to add to his medal haul.
Olympic Swimmer Michael Phelps

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U.S. swimmer Michael Phelps talks to the media after his training at the Gold Coast Aquatic Center on the Gold Coast, Australia, July 15, 2011.

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Michael Phelps displays his eighth gold medal after the men's 4x100-meter medley relay final at the Beijing 2008 Olympics in Beijing.

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Michael Phelps competes in the 100-meter butterfly at the Indianapolis Grand Prix swimming meet in Indianapolis, March 29, 2012.

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Swimmer Michael Phelps swims in the preliminaries of the 100-meter butterfly at the US Swimming Nationals in Indianapolis, August 2, 2007.