LOS ANGELES (AP) -- Maurice Jones scored 16 points, Alex Stepheson added 14 points and 16 rebounds in a strong low-post game, and Southern California advanced to the Pac-10 tournament semifinals Thursday with a 70-56 victory over California.

Donte Smith scored 14 points and Jio Fontan added 12 for the fourth-seeded Trojans (19-13), who overcame a terrible start before surging to an 18-point lead in the second half. Smith hit four of USC's eight 3-pointers in the Trojans' sixth win in seven games.

Pac-10 freshman of the year Allen Crabbe scored 21 points for the fifth-seeded Golden Bears (17-14), whose NCAA tournament hopes almost certainly ended along with their four-game winning streak.

USC will face the winner of top-seeded Arizona's meeting with Oregon State.

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