• In this May 2, 2015, file photo, boxer Floyd Mayweather Jr., celebrates his unanimous decision victory over Manny Pacquiao, from the Philippines, after their welterweight title fight in Las Vegas. Mayweather Jr. will return to the ring for the first time since boxing's richest fight ever, facing Andre Berto on Sept. 12 in Las Vegas. (AP Photo/John Locher, File)

    Mayweather announces Sept. 12 fight with Andre Berto

    LAS VEGAS (AP) — Floyd Mayweather Jr. will return to the ring for the first time since boxing’s richest fight ever, facing Andre Berto on Sept. 12 in what he has said will be his final fight.