Well, the good news at this point is, if he needs TJ surgery, the doc who will do it is the team orthopedist for a national league club. That is who we saw yesterday, and he said that if he needs TJ, he'll likely be back to playing in less than a year, since he doesn't pitch.
He told us that worst case would likely be a medical red shirt, and best case is he'd be throwing decently by November or December and able to play juco ball next spring. Time will tell, we're just gonna wait and see what the MRI shows.
Thanks for the kind words, everyone.