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Floyd Mayweather Jr. Celebrates His Fourth-round Knockout Of Victor Ortiz To Win The WBC Welterweight Title September Getty Images

LAS VEGAS, NV - SEPTEMBER 17: Floyd Mayweather Jr. celebrates his fourth-round knockout of Victor Ortiz to win the WBC welterweight title September 17, 2011 in Las Vegas, Nevada. It was reported that Floyd Mayweather Jr. has been sentenced to three months in jail after pleading guilty to a charge of misdemeanor battery domestic violence and no contest on two counts of harassment against an ex-girlfriend December 21, 2011. (Photo by Ethan Miller/Getty Images)


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