Sport is useless with mouth piece. If you really want pure devastation you need a contest without mouth piece, most people have no clue how mich faster you get koed once you dont have one.
Perrys made a good career for himself since leaving the UFC. Definitely exceeded the expectations of many(myself included) Did not expect a war torn guy with a lot of miles to reinvent himself. Usually those kind of guys end up signing with Bellator and end up having very mixed success.
So we have boxing. Kickboxing. MMA. And now bare knuckle boxing? Just why. How many variations of combat sport do you need.
Amen to that, fought everyone. Him, Bas Rutten, Wanderlei, CroCop. Absolute maniacs. Diaz brothers too.