The crowd booed the MGM Grand in Las Vegas Saturday night once the judges decision to award WBO welterweight champion <a href="http://smokingsection.uproxx.com/TSS/tag/manny-pacquiao">Manny Pacquiao</a> the victory over <a href="http://smokingsection.uproxx.com/TSS/tag/juan-manuel-marquez">Juan Manuel Marquez</a> aired over the speakers.