Does anyone know if Bas Rutten's knee was damaged by that hold? It looked like he was really slow getting up. Also, I'm wondering what percentage of joints are actually damaged in competition from submissions? I know that when we grapple in class, we are very careful putting them on and very quick to tap. Competition is different though. I would think that a full speed application and a slow tap would lead to a broken limb. With that being said, Ken Shamrock is a master of submission. I've had the opportunity to train with one of his students and it is incredible. Also, I liked Ken's use of the crossface in Bas' guard. He really used that effectively in order to pass it.