I have absolutely no sympathies for players that get injured, it sounds cold, but they have made a choice knowing full well what the risks are.
Waaaaayyyyyyy back in high school I was considered a sure shot for playing college ball. I played varsity as a sophomore, started on offence and defense, and was starting to talk to scouts as a junior. Game three of my senior year I hyperextended my knee on a screen play, not a big deal really, I was back practicing the middle of the next week and played the next game (again, starting on both sides of the line). But, when the team doctor was checking out my knees after the injury he found the tendons in both knees to be very loose, and there were grinding noises that worried him, he thought I had lost cartilage in both knees. He told me something I did not want to hear, he said that if I went on to play college football, I would permanently be on crutches by my junior year. He said I should finish playing my senior high school year, have fun, play hard, but never play the game again if I wanted to be able to walk after my mid-20s. He might as well have hit my in the face with a hammer, that is some heavy sh*t for a teenager to process. Not wanting to risk that future, I decided not to play after my senior year. Of course, it might have been a scare tactic, if so, it worked. Knowing that risk was there I made the choice not to play.