It's a crisp fall evening at the Coliseum as USC and Arizona warm up for a 7:30 p.m. kickoff.
Clay Helton is 2-1 as interim coach and will try to make a 4-0 run in November against Arizona, Colorado, Oregon and UCLA in an attempt to win the permanent job.
USC is 5-3 overall and 3-2 in the Pac-12 Conference. Arizona is 5-4 and 2-4.
Several USC starters are considered game-time decisions including receivers JuJu Smith-Schuster and Darreus Rogers, linebacker Cameron Smith, safety Leon McQuay II and defensive lineman Claude Pelon.