You know what they say, punch a blackbelt once and he's a brown belt. Last night, a guy who was a purple belt (up until the end of the fight... then he was Matt Brownbelt) punched a black belt a couple times - 177 to be eact - and dominated him in MMA BJJ. Infact, even while Silva was still a blackbelt and Brown a purple, he showed good MMAJJ defense and warded off a rear naked choke. Dude is legit on the ground in my book, and I am a one stripe white belt so clearly have a lot of authority.