Oregon State opened the Pac-12 Conference schedule with a lopsided defeat to USC, 35-10 at the Coliseum Saturday.

The Beavers were unable to get untracked offensively, failing to score an offensive touchdown with quarterback Sean Mannion struggling throughout the night. Mannion, who threw three picks in a loss to the Trojans last year, had just 123 yards on 15 of 32 passing with a pair of interceptions.

Oregon State was limited to 35 total yards in the second half, while USC racked up 266 yards and needing nearly 11 fewer minutes to do so. The Trojans outgained the Beavers 461-181 in the game.

"Offensively, we never really established anything," head coach Mike Riley said after the game. "Early on we ran the ball a little but never really complemented it with anything down field of any substance."

In the video above, Riley discusses the lack of offense, the play of the defense and the loss to the Trojans Saturday night.

-- Sean Meagher