He was involved in probably the most famous fixed shootfight that's confirmed beyond all doubt, had a former UFC champ take a dive and tap out lmao.
Here's the rest of Mark Coleman's Pride career, notice him only losing the fucking peak elite fighters in the division... and Takada.
To quote his Wikipedia, purely to show his skills
> earning him the moniker, "The Godfather of Ground & Pound".[6] In the sport of wrestling, Coleman was a World Championship runner-up and Pan American Games Gold medalist in 1991, won three Pan American Championships, competed at the 1992 Summer Olympics and was an NCAA Division I National Champion