Floyd Mayweather taunts 'bum' Conor McGregor over Manny Pacquiao after Dustin Poirier KO

Floyd Mayweather has hit out at Conor McGregor and his critics after the Irishman's UFC 257 loss to Dustin Poirier, insisting no-one wants to see McGregor vs Manny Pacquiao in a boxing ring.