Mike Tyson declared "I'm back" as he cut an ominous figure during an intense training session.
The heavyweight boxing legend raised eyebrows when he recently revealed his plans for a return to the ring at the age of 53. He's open to exhibition fights for charity 15 years after he retired.
Evander Holyfield, 57, said he would be up for a trilogy bout with Tyson, who looked in great shape as he showed he can still very much pack a punch in an Instagram clip posted on Monday.