Mike Tyson Posts Training Video <br />Montage Declaring 'I'm Back' Tyson shared the video <br />on Instagram on Monday. The 53-year-old boxing legend is seen <br />aggressively working the mitts with his <br />trainer, landing swift blow after blow. At the end of the video, he looks at <br />the camera and says, "I'm back." It is not known if Tyson is preparing to <br />stage a comeback or if he's merely displaying <br />that he's still a force to be reckoned with. At 20 years old, Tyson <br />became the youngest person <br />to ever with the heavyweight title. He was 50-6 in his career.
