First question, did he take a redshirt year? I don’t remember.
Second question, why not take advantage of a medical. It may be better if he does. If it is as it seems, as far as the type of injury, if an operation is necessary, it may take a year to recover from. A blown knee would hurt his draft standing. Getting healthy and having another year of competition to improve his draft standings might be the way to go.
As far as that happening it’s as good of speculation as him not coming back.