LAS VEGAS (AP) — Warith Alatishe scored a career-high 22 points with 10 rebounds, Ethan Thompson scored all 18 of his points after halftime and Oregon State rallied from a 16-point deficit to beat UCLA 83-79 in overtime in the Pac-12 Conference Tournament.  Oregon State will play regular-season champion Oregon on Friday in the semifinals. Jarod Lucas finished with 17 points and made five 3-pointers for Oregon State. Jules Bernard had with 19 points and 10 rebounds to lead UCLA (17-9), which lost its fourth straight game.