manny pacquiao vs. shane mosley, billed as the undaunted, was a welterweight fight for the wbo welterweight championship. the bout was held on may 7, 2011, at mgm grand, in las vegas. pacquiao defeated mosley by unanimous decision and retained his wbo welterweight championship. the fight was manny pacquiao's first ppv fight in showtime boxing due to hbo not choosing to air the fight.