Collins, who helped train McGregor in boxing, says he knew McGregor would make an impact in the sport.
Four years ago, I always reckoned that he could have gone all the way in boxing for the reason that his work ethic is unbelievable. You know when somebody walks into a room and stands out. I would watch him for an hour and he’d practice the same move over and over. He’s brave, he’s got a heart, and he’s afraid of nobody.