U.S. sprinter Tyson Gay

Associated Press
Injured U.S. sprinter Tyson Gay looks down as he takes part in a news conference for the World Athletics Championships at the stadium in Daegu, South Korea, Thursday, Aug. 25, 2011.   The World Athletics Championships run Aug. 27 through Sept. 4, 2011 in Daegu. (AP Photo/Matt Dunham)

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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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