Michael Phelps' agent has dismissed any suggestion that the retired swimmer may have violated International Olympic Committee rules when pictures from a Louis Vuitton ad campaign were leaked on the Internet during the London Games.

IOC rules prohibit athletes from promoting non-official sponsors during a nearly monthlong period around the games.

Peter Carlisle, Phelps' longtime agent, told The Associated Press on Friday there's no issue with the IOC because the winningest Olympian ever did not authorize use of the pictures. In fact, Carlisle says there are dozens of unauthorized uses involving most of the top athletes during any Olympics.

The ad campaign, which revolves around pictures taken by famed photographer Annie Leibovitz, officially began on Thursday - the day after the IOC ban ended.

By PAUL NEWBERRY, AP Sports Writer

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