Mike Tyson isn't slated to fight Jake Paul for another couple months, but he's clearly ready to step in the ring right now -- check out the bod he showed off during an autograph session over the weekend ... he looks gooooooood!!
Iron Mike ditched his shirt while attending a meet-and-greet event with fight fans on Sunday in Chantilly, Virginia ... showing off a chiseled physique that was complete with a set of six-pack abs.
Tyson explained at the show that he lost his top on purpose .