Manny Pacquiao blamed a shoulder injury for his defeat by Floyd Mayweather in Las Vegas, claiming it stopped him from using his right hand. American Mayweather, 38, outclassed his Philippine rival at the MGM Grand and was awarded a wide unanimous decision. Pacquiao, 36, said he thought he did enough to win the fight, despite most observers agreeing with the verdict. "Three weeks before the fight I got a tear in my right shoulder," he said. "It got better but it wasn't 100%." Pacquiao said he wanted to have an injection in the shoulder before the fight but the Nevada Athletic Commission refused. Source: BBC News