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WBA Super Welterweight Champion Miguel Cotto Poses Getty Images

LAS VEGAS, NV - MAY 04: WBA super welterweight champion Miguel Cotto poses after weighing in at 154 pounds during the official weigh-in for his bout against Floyd Mayweather Jr. at the MGM Grand Garden Arena on May 4, 2012 in Las Vegas, Nevada. Cotto will defend his title against Mayweather on May 5, 2012 in Las Vegas. (Photo by Al Bello/Getty Images)

Mayweather vs. Cotto weigh-in

Miguel Cotto will be defending his version of the 154-pound title May 5 against undefeated Floyd Mayweather Jr.