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CORVALLIS, Ore. (AP) - Sean Mannion passed for 325 yards and four touchdowns, and No. 15 Oregon State routed California 62-14 on Saturday night on a rainy night at Reser Stadium.

Markus Wheaton had seven catches for 99 yards for the Beavers (8-2, 6-2 Pac-12), who improved to 5-0 at home and will face Oregon in the Civil War next weekend. Terron Ward ran for 128 yards and two touchdowns, helping the Beavers rack up 559 yards of offense.

Isi Sofele had 104 yards rushing for the Bears (3-9, 2-7) - his fourth 100-yard game of the season - while Allan Bridgford was 18-of-31 passing for 132 yards.

Mannion finished 24-of-34 passing in just over three quarters of work. A sophomore who took over as starting quarterback last season as a redshirt freshman, he led the Beavers to 4-0 start before he was sidelined by a knee injury that required surgery and caused him to miss two games.

He returned against Washington and threw four interceptions in a 20-17 loss. He was on the bench by the end of that game and backup Cody Vaz started against Arizona State. But Vaz was hurt in the final seconds of the loss to Stanford.

Mannion returned to the starting role this week and, other than an interception on the first drive of the game, he looked healthy and confident against the Bears. He had all four touchdown passes in the first half, tying a school record and helping the Beavers to a 35-7 lead at the break.

California's touchdowns came on a 9-yard run by Sofele in the first quarter and a 1-yard run for Bridgford in the third.