Ireland’s Conor McGregor has told Dustin Poirier their third fight scheduled for July 10 is off after the pair quarreled on Twitter over a $500,000 donation to the American’s charity.

Ireland’s Conor McGregor has told Dustin Poirier their third fight scheduled for July 10 is off after the pair quarreled on Twitter over a $500,000 donation to the American’s charity.