Jawanza Starling returned a fumbled snap 80 yards for a third-quarter touchdown and Matt Barkley passed for three scores Saturday night as Southern California beat Notre Dame 31-17 to end the Irish's four-game winning streak.
The Trojans (6-1) jumped out to a 17-0 lead in the first half and then fought off a comeback by the Irish (4-3) in the first night game at Notre Dame Stadium in 21 years.
USC, which has now won nine of the last 10 meetings in the long rivalry, had a 443-267 advantage in total yards.
Starling picked up the loose ball after Notre Dame backup quarterback Dayne Crist - who entered the game when starter Tommy Rees was momentarily shaken up - couldn't get the handle on a snap at the USC 1 with Notre Dame behind by a touchdown.
Crist, who lost the starter's job after the first half of the season opener, replaced Rees and completed 4 of 5 passes to help the Irish reach the 1. But when he couldn't control the snap, the ball got loose and Starling picked it up and ra...