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Justin Gatlin of the U.S. celebrates winning the men's 100 metres final at the Athens 2004 Olympic Games, August 22, 2004. Justin Gatlin is learning how to sprint again, and it has
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Sprinter Justin Gatlin prepares to run from the blocks during practice in Marietta, Georgia in this January 18, 2010 file photo. Justin Gatlin is learning how to sprint again, and it has
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