People are such idiots. You do realize how unlikely it is to cause a real injury hyperextending a knee, right? That's what that kick does. It hurts, yes. It does not do any real damage. The knee is the strongest moving joint in your body supported by the strongest muscles. Kneebars, for example, are a safe sub because they hyperextend rather than torque. You can stretch the tendons and ligaments out to a great extent with no injury. The knee is not weak to hyperextension, it's weak to torque. Jones kicks the kneecap, stifling footwork and causing a little pain. He doesn't kick the side of guys' knees, putting lateral pressure across the joint, and he doesn't try to cripple people with heel hooks, so please shut the fuck up unless you know what you're talking about with the knee kick shit. It's stupid. You hate him. We get it. Get a fucking life so the ego you have attached to the latest "challenger" isn't too badly bruised when the fight is over.