Have heard this claim bandied about recently and although a longtime Ken fan, had never considered it. For: -He has the lineage and pedigree from Karl Gotch to Funaki who then taught Ken, and was pioneer applying the style in US and Japanese MMA. -He trained elite grapplers like Frank Shamrock Tapped Greco master Severn and Bas although Bas was green on the ground then. -Apparently schooled alot of guys in the early days doing sub grappling before injuries took hold. Against: Josh Barnett, perhaps others Also he 'forgot' how to finish a closed position rear naked choke vs Kimbo or panicked and applied a pro wrestling sleeper hold instead. I hope to #### that was actually a work otherwise ####, and it would severely damage his above claim but still... So arguments for and against. At least in MMA he probably has a case but I imagine there are some catch guys rolling in their graves at this statement.