I'm sure others have, but it's a rarity. Otavio Souza is the only guy other than Lucas Lepri I believe I've seen sweep Leandro Lo as a black belt (I know, I'm probably missing someone, take a deep breath, it's Monday morning).
At any rate, jump ahead to 1:24 to see Otavio Souza enter the hallowed halls of the few to get Leandro Lo on his back:
