Photos: Phelps drops 200 free, bid for 8 golds in London
Michael Phelps: US Olympic swimming trials
Credit: AP
Michael Phelps and Tom Shields, top, swim in the men's 200-meter butterfly final at the U.S. Olympic swimming trials, Sunday, July 1, 2012, in Omaha, Neb. Phelps won the final. (AP Photo/Nati Harnik)
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