In this video I show a very important skill, how to regain the underhook after you've been flattened out in Half Guard. No one wants to be flat, but there are times that it happens. Maybe you got caught by surprise, maybe your opponent is really good, or maybe you made some mistakes (more often than not it's the last one for me). Regardless of the reason, this can save you a lot of problems. I have seen a lot of people playing the knee shield lately. But very rarely do I see anyone use the b