Boxer Manny Pacquiao is being sued in the US.<br />Two spectators claim his alleged failure to disclose a pre-bout shoulder injury before the “Fight of the Century” on Saturday in Las Vegas amounts to fraud.<br /><br /> Pacquiao lost to Floyd Mayweather in the heavily hyped welterweight showdown which was the top grossing prize fight of all time.<br /><br /> Neither Pacquiao nor his team appeared to have informed the Nevada Athletic Commission about the shoulder issue (as they are obliged to) until a couple of hours before the start of the fight when they asked for an anti-inflammatory injection.