No. 12 'Zona downs Cougs

| February 18, 2011 8:00 PM

TUCSON, Ariz. (AP) - Derrick Williams had 26 points and eight rebounds, and No. 12 Arizona withstood a big night from Klay Thompson to hold off Washington State 79-70 Thursday night.

Williams got to the rim and the line, hitting 7 of 10 shots and all 12 of his free throws. He also got some help from Solomon Hill, who scored all of his 12 points in the second half to give Arizona (22-4, 11-2 Pac-10) its 14th straight home win.

Thompson, the Pac-10's leading scorer, tried to carry Washington State (17-9, 7-7) with 30 points, but a shaky start to the second half put the Cougars in too big of a deficit.

DeAngelo Casto added 14 points for Washington State, which plays at Arizona State on Saturday.

WASHINGTON ST. (17-9)

Motum 1-4 2-2 4, Casto 5-9 4-4 14, Capers 2-2 0-0 4, Thompson 11-24 3-4 30, Moore 4-10 2-4 10, Aden 1-4 0-1 2, Winston Jr. 0-0 0-0 0, Lodwick 2-6 0-0 6, Simon 0-1 0-0 0. Totals 26-60 11-15 70.

ARIZONA (22-4)

Williams 7-10 12-12 26, Perry 4-6 0-0 8, Hill 5-9 0-0 12, Jones 3-9 4-4 10, Fogg 2-5 4-6 9, Natyazhko 0-0 0-0 0, Parrom 1-2 2-2 5, Mayes 0-3 2-2 2, Lavender 0-2 0-0 0, Horne 3-5 0-0 7, Jacobson 0-1 0-0 0. Totals 25-52 24-26 79.

Halftime_Arizona 41-33. 3-Point Goals_Washington St. 7-19 (Thompson 5-8, Lodwick 2-6, Simon 0-1, Motum 0-1, Aden 0-1, Moore 0-2), Arizona 5-17 (Hill 2-3, Parrom 1-1, Horne 1-3, Fogg 1-3, Perry 0-1, Lavender 0-1, Jones 0-1, Mayes 0-2, Williams 0-2). Fouled Out_Lodwick. Rebounds_Washington St. 28 (Casto, Motum 6), Arizona 35 (Williams 8). Assists_Washington St. 12 (Casto, Lodwick 3), Arizona 17 (Fogg 7). Total Fouls_Washington St. 19, Arizona 15. A_14,456.