Remember seeing that back in the day, this was one of the most subtle submissions EVER he almost took no time and the guy just falls dead. technique and strenght right there.
I remember Dana White saying how Chuck Liddell told him something along the lines of only a powerhouse like Hughes can pull off a submission like that.
He had him rocked first to be fair. But Hughes is a HELL of a grappler with black belt skills, easily much better than an average BJJ black belt. Remember his armbar on GSP? It was a thing of beauty.
Hughes submitted an elite BJJ artist in MMA after hitting with a STRIKE. Pure Gi or NO Gi BJJ, Almeida taps him or shuts him out. Penn Submitted Hughes in his prime, and GSP ended his trilogy with Hughes after dominating Matt on the ground.