Tony Ferguson is doubling down on his pursuit of a fight with Conor McGregor . After calling out McGregor (22-6 MMA, 10-4 UFC) for a fight Thursday , Ferguson (25-6 MMA, 15-4 UFC) circled back with a more aggressive and blunt social media attack on the former two-division UFC champ. McGregor opened the door during his Twitter Q&A with fans, during which he said he’s eager to make his UFC return and take out all the “clowns” on the roster. Moreover, the Irishman said he’s bulked up significantly while recovering from the broken leg he sustained in his first-round TKO loss to Dustin Poirier at UFC 264 in July