Faisal Aden scored 20 points for the Cougars (19-10, 9-8 Pac-10).
In the final 4:45, Washington State had one shot from the floor: a layup by Aden, after he stole the ball from Vucevic. The basket put the Cougars up 77-70 with 1:41 remaining.
The rest was done at the line, where Washington State went 10 of 14 in the final 4:45, and 8 of 8 in the final 3:03.
The Cougars lost guard Reggie Moore to a sprained ankle seven minutes into the game. He will be re-evaluated on Friday.
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High school junior Zach Brown, a 7-footer from Miami, has rescinded his commitment to UConn, sources told ESPN.
Reserve center Akolda Manyang has been charged with felony aggravated assault after being accused of punching a man in the face without provocation.
Should the 76ers take Ben Simmons No. 1? What if they get the Lakers' pick, too? And how does the rest of the top 10 shake out? Our Insiders run their latest mock draft, with Philly on the clock.