Mark Kerr, 46, a two-time UFC tournament winner who rampaged across the heavyweight division in both the United States and Japan throughout the late-nineties, opened up to discuss his decorated career, troubled history with performance enhancing drugs and narcotics, as well as the realities of post-fighting life in this candid follow-up to the classic HBO film, "The Smashing Machine." The mini-documentary, directed by Bobby Razak as an accompaniment to Sports Illustrated's recent longform about Kerr's life, can be seen above.