Washington State knocked off Southern California 10-7 on Saturday night, beating the Trojans for the first time since 2002.
Damante Horton had a pair of interceptions to help give the Cougars their biggest win under head coach Mike Leach.
Horton picked off Cody Kessler to give the Cougars the ball with just over 2 minutes to go. He also returned an interception 70 yards for a touchdown with 44 seconds left in the first half to tie the game at 7-7.
After a scoreless third quarter, Andrew Furney kicked a 42-yard field goal for a 10-7 lead with 3:50 left.
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It is the Cougars first win over a ranked team since 2006.
Connor Halliday finished 25-of-37 for 207 yards passing and two interceptions.
The Cougars defense held USC to 182 yards of offense and 15 first downs and forced two turnovers.
Marcus Mason rushed 11 times for 25 yards, as the Cougars gained just 225 yards of their own and finished with three turnovers.
But it didn’t matter as USC struggled to move the ball all night long, much tot he chagrin of the Trojans faithful which booed the team throughout the game and chanted “Fire Kiffin” in the final moments. Lane Kiffin is the embattled coach of USC, who has been on the hot seat in recent seasons.
USC star receiver Marquise Lee was held to just 29 yards on eight receptions in the loss. He also muffed a punt.