As a Bronco fan, one of my favorite players is Terrel Davis. He was a magnificent runner, but his career was ended due to an injury like this. There is, however, a lot of money in sports medicine going to fixing knees, so what would have ended an athlete's career a decade ago may be fixable. That's correct. Terrell Davis blew out his knee 15 years ago, his career was over. Adrian Peterson? Same thing happen a year or two ago. Now? As good as new!