This is a really nasty injury. After the first two slow motion clips I put the entire play if you want to see it. Or skip it because you can't see anything. The player is Johnny Knox and he was a player for my favorite team the Bears from my hometown of Chicago. As you can see, the back of his head touched his ass. This is not supposed to be. He was folded up backwards like a chair and broke his back in multiple spots. His doctor's told him the odds of ever walking again were near zero percent. However, he did regain the ability to some what walk short distances very slow and causing intense pain that's not worth it. This happened in two thousand eleven. I don't know how much better his condition got after the third or fourth year. He went from making millions of dollars, being fit, strong, famous, and having a good life to being poor, in pain, depressed, disabled, can't work, or even fully take care of himself. All in the span of a few seconds. I feel bad for the guy.