MMA pioneer Mark Kerr tells Joe Rogan how elite wrestling conquered fighting, and opens up about addiction, sobriety, and seeing his life turned into a movie.

Mark Kerr — Pioneering heavyweight MMA fighter and two-time ADCC champion who dominated the early UFC and Japan's Pride organization in the late 1990s. His struggles with opioid and alcohol addiction were documented in the 2002 HBO film 'The Smashing Machine' and dramatized in the 2025 movie of the same name starring Dwayne Johnson.
Joe Rogan and Mark Kerr reflect on Kerr's career as one of MMA's first dominant elite wrestlers and the brutal early days of the UFC and Pride in Japan. They trace the sport's explosive evolution from no-rules, untested 1990s spectacles to today's hyper-conditioned, technical athletes, discussing fighters like Khabib, Usyk, Chimaev, Pereira and the supremacy of wrestling. The conversation turns deeply personal as Kerr recounts how the Smashing Machine documentary captured him at the depths of his opioid addiction, and how he eventually got sober. They close on recovery, the psychological cost of elite competition, the singular drive required for greatness, and the new movie about his life.
Books, products and media the guest or host genuinely endorsed here — with the buy link.
Affiliate link — we may earn a commission at no extra cost to you.
Benny Safdie (inferred)
“the movie's fantastic... it's a movie that happens to be about MMA, but it's a great movie.” — Joe Rogan 00:00:01Find it on Amazon
John Hyams (inferred)
“I don't think anybody had any idea until the Smashing Machine documentary came out. And when that documentary came out, everybody was like, "Holy shit."” — Joe Rogan 00:30:14Find it on Amazon
Mark Kerr / Panther Productions
“it's this videotape series that I did for Panther Production. Here it is, Sam... fighting techniques. Mark Kerr seek and destroy.” — Mark Kerr 02:01:17Find it on Amazon
John G. Avildsen (inferred)
“Rocky one was real... I drank a raw egg and I ran around the block as soon as I got home... that was a great movie.” — Joe Rogan 01:55:02Find it on Amazon