Also great awareness on Griffin's part to tuck his head in. He could have sustained a really serious injury if he had landed square on his head. Should have turned his body so he didn't come down so square on his back, though. It looked like he landed it pretty well. You're supposed to spread out the force of a landing like that across as large of an area as possible. If you land on your side, you risk doing something like dislocating your shoulder or breaking your arm. Landing on your back is actually a good choice in those situations.