Barkley will watch his final regular-season game from the sideline with a sprained shoulder. The Pac-12's career leader in multiple passing statistics will never get to face Notre Dame at the Coliseum, also missing the game two years ago with an injury. ... USC has won nine of the schools' last 10 meetings, losing only in 2010 when Trojans WR Ronald Johnson dropped a sure TD pass in the final minutes of a 20-16 win for Notre Dame, led by QB Tommy Rees. ... Notre Dame has brought the No. 1 ranking to the Coliseum six times, with USC winning two of those matchups. The Irish haven't been No. 1 in this game since 1989. ... USC is 7-11 against all No. 1 opponents. ... Notre Dame has a higher ranking than USC in this matchup for the first time since 2000. ... USC AD Pat Haden spent 12 years as a color analyst on Notre Dame television broadcasts.