Ohio State coach Ryan Day says quarterback Julian Sayin is out indefinitely after injuring his throwing arm against Indiana. Day is preparing for the possibility that Sayin might miss the rest of the season. The Buckeyes are on a bye week after their 19-15 victory over Indiana. Day and his staff are evaluating whether Luke Fahey or Tavien St. Clair will start against Southern California on October 31. Fahey has been ahead recently, but both will get more practice reps. Day emphasizes the need for the team to adapt and step up, recalling past successes with backup quarterbacks.