Nov. 14, 2009

LOS ANGELES (AP) -Toby Gerhart rushed for 178 yards and three touchdowns, and No. 25 Stanford emphatically followed up its historic 2007 upset at the Coliseum while essentially ending 11th-ranked Southern California's reign atop the Pac-10 with a 55-21 win Saturday.

Andrew Luck threw two touchdown passes and ran for another score for the Cardinal (7-3, 6-2 Pac-10), who followed up their surprising rout of Oregon last week with a strong start and a 27-point fourth quarter at the Coliseum, where the Trojans (7-3, 4-3) haven't lost to any other opponent since 2001, going 47-2.

Richard Sherman returned an interception 42 yards for a score with 11:41 to play for the Cardinal, who handed once-dominant USC its second blowout loss in three weeks.