Michael Phelps, fourth right, who won seven gold medals and broke five world records earlier this month at the world championships in Melbourne, signs autographs as he works on a swimming clinic with special Olympic swimmers in Beijing Tuesday, April 10, 2007. During his stop in Beijing with three other American swimmers to check out the 2008 Olympic venues, Phelps hopes to see the Aquatic Center, the swimming venue known as the Watercube, which is still under construction. [AP]

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