Overview
- Julian Sayin suffered a right throwing‑arm injury when Mario Landino sacked him and was ruled out indefinitely by coach Ryan Day after the Oct. 17 game at Indiana.
- Day declined to name a starter on Oct. 27 and said both Luke Fahey and Tavien St. Clair got extended first‑team reps during the bye week while the staff continues its evaluation.
- Fahey entered the Indiana game and has held the depth‑chart edge after camp, but he struggled in limited in‑game snaps while St. Clair offers five‑star physical traits yet has no collegiate starts.
- Coaches are preparing simplified packages and plan to rely on an improving offensive line and returning defenders to protect whichever inexperienced quarterback starts at USC on Oct. 31.
- The decision is widely viewed as season‑defining because it can affect Ohio State’s College Football Playoff trajectory and send signals to in‑state recruits depending on which prospect is chosen.