Oregon State has beaten Southern California three times in the schools' last six meetings, including two victories over Trojans teams with top-three rankings.

Coach Steve Sarkisian knows all about the Beavers' history of bedeviling the Trojans, and he realizes No. 18 USC can't think about the past if it hopes to have much of a future in what's already been a wacky season.

USC (2-1, 1-0 Pac-12) returns to the Coliseum for a visit from Oregon State (3-0, 0-0) on Saturday night, and the Trojans are still healing from their upset loss at Boston College two weeks ago.

USC's defense was exposed as porous, tackling-deficient and unequipped to deal with the Eagles' complex offense — all of which could be disastrous against the superior Beavers, who are looking for another landmark win with quarterback Sean Mannion.