Michael Phelps vs. Ryan Lochte at Olympic trials

Michael Phelps of the United States competes in the MenÂs 100m Butterfly Final on Day 7 of the London 2012 Olympic Games at the Aquatics Centre on August 3, 2012 in London, England. (Photo by Clive Rose/Getty Images)

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Michael Phelps and Ryan Lochte battle it out at the U.S. Olympic swimming trials in Omaha.

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