Did a quick search and his injury is: "An right elbow injury --Adams as a torn ulnar collateral ligament"
It looks like he was able to play through it during his senior year, but it may have required surgery following the season (can't find anything that clarifies if he ended up needing elbow surgery or not)
May not be as severe as I had thought, though I've seen a decent amount of concern about what it will do to him long term