U.S. sprinter Tyson Gay

Associated Press
Tyson Gay, from the US, wins the men's 100m race, at the Athletissima IAAF Diamond League athletics meeting in the Stade Olympique de la Pontaise in Lausanne, Switzerland, on Thursday, July 4, 2013. (AP Photo/Keystone, Laurent Gillieron)

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After a lackluster performance at the 2008 Beijing Olympics, American sprinter Tyson Gay will be looking for redemption on the track at the London Games. -- By Armando Botello II

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