LAS VEGAS, NV - SEPTEMBER 11: Boxers Floyd Mayweather Jr. (L) and Andre Berto pose during their official weigh-in at MGM Grand Garden Arena on September 11, 2015 in Las Vegas, Nevada. Mayweather will defend his WBC/WBA welterweight titles against Berto on September 12 at MGM Grand in Las Vegas. (Photo by Ethan Miller/Getty Images)
