Pacquiao faces possible sanctions

The fallout from the "Fight of the Century" became murkier on Monday with possible lawsuits in the works and Manny Pacquiao likely to face disciplinary action for failing to disclose a pre-bout shoulder injury.

Filipino Pacquiao lost on a unanimous decision to undefeated American Floyd Mayweather Jr. in a heavily hyped welterweight showdown in Las Vegas on Saturday that is expected to be the top grossing prize fight of all time.

Barely one hour after the contest ended, Pacquiao's promoter, Bob Arum, said the 36-year-old southpaw had been hampered by an 'old' injury to his right shoulder.