Willms was academicly ineligible and couldn't participate in team practices last year although he was enrolled. It counted against his eligibility so it's equivalent to a red shirt. He could request a medical white shirt if he only plays x number of games due to the shoulder. I believe he'd still have 4 years if he doesn't play more than 6 games and his request is granted. More likely he will muscle through the season and go under the knife immediately thereafter.