I think this is where I should post this. Jahvid Best, a running back for the California Golden Bears, had a nasty fall, in the Oregon St. game. He has full function of all of his arms and legs. The link gives the full story.
Ouch.
Reminds me of the nasty ankle snap of an Alabama WR a year or 2 back, i'll try to dig it up. Watching that live made the game way more worthwhile