Nah, he's a long-time MMA commenter, not a participant. In fact, her ladyship Ronda Rousey called him out on that just recently. OTOH he actually does hold two legit Brazilian jiu-jitsu black belts, so the man is no fraud in terms of martial arts.

Like his master Dana White though, it seems he's heavily in to nootropics and performance-enhancing shizzle. Along those lines, it seemed to me that both of them were fairly handsome men only a few years ago, and these days they just look... weird... Like, sort of greasy-faced, with enlarged heads, and sunken facial features.