And the results left me with mixed feelings. Apparently the majority of athletes who tear ACLs develop arthritis in that knee. It's usually within a decade but with Gurley playing perhaps the most violent position in sports, sounds like the wear and tear was accelerated. Will Blackmon, former NFL defensive back, shared insight on his career with arthritis. He said that it's extremely discomforting and you have to manage it day to day just to make it to Sunday vv if I'm the Rams, I'm seriously thinking about adding a workhorse like back to compliment Gurley like Ingram and kamara.