Nikola Vucevic had 17 points and 10 rebounds as USC snapped a three-game losing streak to Oregon State with a 67-56 victory on Thursday night.
Donte Smith had 13 points and made several clutch 3-pointers for the Trojans (13-11, 5-6 Pac-10).
The Beavers (9-14, 4-8) made just 1 of 11 3-pointers and had 19 turnovers. Leading scorer Jared Cunningham, who had a career-high 24 points against USC on Jan. 15, finished with 11 and was the only Oregon State player in double figures.
The Beavers entered Thursday leading the nation with 10.1 steals per game. They had nine against USC, but scored only eight fast-break points.
USC, which entered the game shooting 61.1 percent on free throws in Pac-10 games, made 81 percent from the line.
Omari Johnson had seven points and 10 rebounds for Oregon State.