TONIGHT

* No. 22 WASHINGTON (19-7, 12-4) at USC (11-15, 6-10), Sports Arena, 7--Washington, with a one-game lead over Arizona State, can clinch the Pacific 10 Conference championship this weekend. But the Huskies are playing a team that may have at last found itself. The Trojans last weekend swept Stanford and California in the Bay Area for the first time since 1986.

* WASHINGTON STATE (11-15, 6-10) at UCLA (4-23, 3-13), 7, KACD (AM)--UCLA closes its all-time worst season this weekend having already clinched last place in the Pac-10 by losing nine of its last 10. The Bruins lost, 74-52, at Washington State Jan. 6.