Frank Mir is not someone to take lightly, and things can escalate quickly when ego enters the equation — as it often did with Jason “Mayhem” Miller.
The two were teammates for years, with Mir becoming a UFC heavyweight champion and Miller experiencing a mix of success and struggles both inside and outside the Octagon. Known for his antics, “Mayhem” often tested the limits with his teammates in training — a habit Mir experienced firsthand.
During one infamous training session, things reached a boiling point, nearly resulting in a serious injury to Miller. Mir shared the story during an appearance on the JAXXON podcast.
We were training at Marc Laimon’s gym, and Laimon said, ‘Hey, Frank, practice is over … once you finish somebody.’ So I just turned it on and started tapping everybody,” Mir recounted. “Then I got to Mayhem, and I put him in a guillotine, and he almost killed himself. He ran his feet up the f***ing cage, trying to flip over me — it was weird. So I let it go, and then I caught him in a kimura.
I started cranking it and thought, ‘I’m not letting go. F*** this. Today you’re going to learn!’ So I put his hand to the back of his head.
