Klubnik has thrown for 1,530 yards, 11 touchdowns and five interceptions in his third full season as the starter. The last time a quarterback other than Klubnik started a game came in 2022, when DJ Uiagaleilei started in a 31-30 loss to South Carolina.

Swinney’s tone on Sunday carried cautious optimism, but his words also hinted at awareness: Clemson’s ceiling this season rests heavily on its ability to keep its starter upright and available. With Klubnik nursing an ankle injury and likely limited in practice early this week, Clemson’s preparation is already behind schedule.