Mayweather-Ortiz

Associated Press
Floyd Mayweather, center, delivers a knockout punch to Victor Ortiz as referee Joe Cortez, right, looks on in the fourth round during a WBC welterweight title fight, Saturday, Sept. 17, 2011, in Las Vegas. (AP Photo/Eric Jamison)

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Floyd Mayweather Jr. and Victor Ortiz fought at the MGM Grand in Las Vegas.

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