Warren Washington scored 15 points and grabbed nine rebounds as sixth-seeded Arizona State beat 11th-seeded Oregon State 63-57 on Wednesday in the first round of the Pac-12 tournament in Las Vegas.

Desmond Cambridge Jr. and DJ Horne scored 13 points apiece for Arizona State (21-11), which held the Beavers to 34 percent shooting from the field and 16.7 percent (3 of 18) from 3-point range.

Glenn Taylor Jr. led Oregon State (11-21) with 17 points. Jordan Pope scored 12, and Tyler Bilodeau tallied 11 points and seven rebounds. The Beavers have lost their last five meetings against Arizona State, including all three meetings this season.

Arizona State advances to face third-seeded Southern California in Thursday's quarterfinals. The Sun Devils dropped both games against the Trojans this season, including a 68-65 defeat on Saturday in Los Angeles.

Oregon State remained within single digits for much of the Wednesday game despite several extended scoring droughts. The Beavers cut a 12-point deficit to 55-49 on Pope's 3-pointer with 6:14 remaining.

Arizona State led 61-53 before the Beavers scored four straight to make it a four-point game with 1:15 left. Oregon State missed 11 of its final 12 field-goal attempts, and the Sun Devils' Jamiya Neal made two foul shots with 17 seconds left for the final margin.

Oregon State kept the game at its preferred slow pace in the first half and trailed 24-16 before going on a 10-0 run to move ahead by two.

Horne scored nine points in the half for the Sun Devils, who took a 29-26 lead into the break despite shooting 36.7 percent from the field and 3 of 12 from 3-point range.

Arizona State's defense proved to be the difference during a critical stretch midway through the second half. Devan Cambridge's three-point play capped a 12-1 run that put the Sun Devils ahead 46-36 with 9:50 remaining.

Oregon State went more than eight minutes without a field goal before Rodrigue Andela scored with 8:44 left. The Sun Devils then took their biggest lead of the game nearly a minute later at 55-43 on Horne's layup.

--Field Level Media