Boxer Mike Tyson, who will return to the ring after 15 years, has revealed the mental challenge he's facing. "My ego is f***ing with me and I'm saying, 'You think you fly? You ain't s***. You want to get embarrassed in front of these f***ing people?'," Tyson said. He added, "Then the other ego says..."F*** you...watch what I'm gonna do'."