You're no fool, grappler. We're confident you, someway, somehow, watched UFC Rio (UFC 142). How could you not? It was held in Brazil, and featured Brazilian fighters in every bout. Why is that important? BJJ, my friends. And, lots of it.
So what if you missed it because of a preexisting commitment to do some marathon scrapbooking with your mom. It's your life. As for us, we watched the damn thing and were blown away. All the Brazilians won and that is no surprise (some nice KO's too).
There were 3 nice submissions, the most glorious being Rousimar "Toquihno" Palhares' slick 1-minute kneebar. Check out the gifs.