TUCSON, March 6 (UPI) -- Channing Frye recorded a double-double with 24 points and 12 rebounds Thursday night as the top-ranked Arizona Wildcats posted a 72-60 Pac-10 Conference victory over Oregon State.
It was the first appearance of Jay John at the McKale Center since being named coach of the Beavers.
The Tucson native spent the previous four years as an assistant under Lute Olson at Arizona before getting the job in Corvallis.
Olson improved to 6-1 against his former assistants, but he was not happy with his players' performance.
"I just didn't feel mentally that we were with it like we have to be," Olson said. "You can say it was the long road trip or that we had already had wrapped up the Pac-10 championship, but we have to be more mentally ready than we were tonight."
Luke Walton added 12 points and reached the 100-assist mark for the fourth straight season for the Wildcats (24-2, 16-1 Pac-10), who stretched their winning streak to nine games.
It was not easy as Oregon State (13-13, 6-11) closed to within 58-54 on Brian Jackson's three-pointer midway through the second half.
Walton hit one of two from the line to make it 70-60 with 1:56 to go and Frye's dunk with six seconds left capped the scoring.
Jackson scored 16 points and Phillip Ricci added 15 for the Beavers, who need a victory on Saturday at Arizona State to record its first winning regular season since 1990.
"The whole experience of playing back here at McHale has been surreal, unique, odd and novel," John said. "I play to win and I want my program to not be intimidated by anybody, and we weren't. If you play as hard as you can, you won't fail. You may not win, but you won't fail. We will grow."
Jimmie Haywood contributed 12 points for the Beavers, who need to win Saturday at Arizona State to clinch their first winning regular season since 1990.