Thompson, Alatishe help Oregon State beat No. 21 Oregon

Oregon forward Eugene Omoruyi (2) comes down with a rebound next to Oregon State forward Dearon Tucker (35) during the first half of an NCAA college basketball game Saturday, Jan. 23, 2021, in Eugene, Ore. (AP Photo/Andy Nelson)

Oregon State guard Gianni Hunt (0) drives to the basket past Oregon forward Eugene Omoruyi (2) during the first half of an NCAA college basketball game Saturday, Jan. 23, 2021, in Eugene, Ore. (AP Photo/Andy Nelson)

Oregon State guard Gianni Hunt (0) drives to the basket as Oregon forward Lok Wur (15) defends on the play during the first half of an NCAA college basketball game Saturday, Jan. 23, 2021, in Eugene, Ore. (AP Photo/Andy Nelson)

Oregon State forward Warith Alatishe (10) blocks the shot of Oregon forward Eugene Omoruyi (2) during the first half of an NCAA college basketball game Saturday, Jan. 23, 2021, in Eugene, Ore. (AP Photo/Andy Nelson)

Oregon State forward Rodrigue Andela, left, and Julien Franklin defend against Oregon forward Eric Williams Jr. during the first half of an NCAA college basketball game Saturday, Jan. 23, 2021, in Eugene, Ore. (AP Photo/Andy Nelson)

Oregon State guard Jarod Lucas (2) looks to shoot over Oregon forward Eugene Omoruyi during the first half of an NCAA college basketball game Saturday, Jan. 23, 2021, in Eugene, Ore. (AP Photo/Andy Nelson)