Until Oregon State's fans descended onto the field in droves, the third-ranked USC Trojans believed they were headed for another victory.
Southern California couldn't find a way to win this close game.
Oregon State capitalized on four turnovers to upset the Trojans 33-31 on Saturday, snapping USC's 27-game Pac-10 winning streak and breaking the national championship race wide open.
Oregon State Stuns No. 3 USC