The Irishman tweeted in reference to his character in the famous gaming franchise, promoting Call of Duty Infinite Warfare. He said: 'When the biggest need the baddest to do work, I answer the call.'
McGregor's next opponent in the UFC is yet to be announced but as a crossover star he is enjoying the perks of celebrity. The fighter clinched victory in his highly anticipated rematch with Nate Diaz at UFC 202 after a gruelling five-round battle.
Since then he has been seen enjoying pool parties and allowing his body to heal from the fight. It was revealed in the aftermath that McGregor broke his foot as he worked over Diaz with leg kicks early in the contest. His next move will be fascinating as he still has to defend his featherweight belt despite clamour for a third match-up with Diaz.