What happened: Television commentator Stephen A. Smith and former running back Marcus Allen were on the sideline ahead of kickoff at the Coliseum. The two took in pregame warmups together near the field.

Why it matters: Allen remains one of the signature figures in program lore following his 1981 Heisman Trophy season. High-profile sideline guests continue to accompany marquee Big Ten campus showcases.

What to watch: The Trojans continue their conference slate into the November stretch run.