I was watching Pride 2 i believe, and i was watching Royler gracie fight someone from takada dojo. Royler kept dropping down into a butterfly guard and swept him with im not sure of correct name but he had on leg on the inside of his thigh and the other hooking his outside leg to which he was sweeping him to. He had the arms hooked i believe. I also have seen Fabricio Werdum do it in sport Jiu-Jitsu, but he had the back of his gi wrapped up with his hand. What im asking is what is the name of this sweep, and i watch a decent amount of MMA and i this was the onlytime i have seen it. I imagine it is a common occurance in Bjj, but how bout MMA.