Saw this about Reggie Williams, former LB for the Bengals. After 24 surgeries, his knee is so mangled and disfigured his DR.s say he will eventually lose his leg. Insurance doesn't cover his preexisting condition but he has done well after football as a VP of Disney. This screams to the fact that there needs to be some level of disability benefits for retired players.
Here's the link (the pic of his knee is pretty graphic):