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In this photo provided by the Las Vegas News Bureau, referee Joe Cortez checks on Victor Ortiz during a WBC Welterweight boxing bout against Floyd Mayweather, Saturday, Sept. 17, 2011, in Las Vegas. Mayweather won by a knockout in the fourth round. (AP Photo/Las Vegas News Bureau, Brian Jones)


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