File photo of Michael Phelps celebrating after the U.S. won the men's 4x100m freestyle relay during the Beijing 2008 Olympic Games
Michael Phelps celebrates after the U.S. won the men's 4x100m freestyle relay swimming final during the Beijing 2008 Olympic Games in this August 11, 2008 file photo. Kellogg Co, the world's largest cereal maker, said in a statement February 5, 2009 that it will not extend the Phelp's endorsement contract after a photo of the swimmer purportedly smoking marijuana was published by a British newspaper. REUTERS/David Gray/Files (CHINA)
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