UCLA’s players watch the action from the bench during Washington’s win in Seattle on Sunday. Associated Press Photo.

SEATTLE — Washington didn’t just beat rugged UCLA. The Huskies beat up the big, bad Bruins — literally socked one of them in the nose.

Justin Dentmon, benched in favor of a freshman for most of the season, scored 20 points and completely took Darren Collison out of the game defensively to lead previously wayward Washington to a 71-61 upset of No. 5 UCLA on Sunday.

With UCLA down 66-61 with 47 seconds left because the Huskies had squandered much of a nine-point lead at the foul line, Washington’s Tim Morris was about to get called for a five-second violation on an inbound play. Instead, he threw the ball off the nose of Alfred Aboya, who was guarding him closely across the boundary line, and it banged into an incensed UCLA bench.

The Huskies retained possession and Jon Brockman, who had 12 points and 17 rebounds, scored. Ryan Appleby added two free throws following a steal to put Washington (13-11, 4-7 Pac-10) up 70-61. The upset, accompanied by a wild celebration, was back on.

“He just threw it off the kid’s face,” UCLA coach Ben Howland said of Morris’ sneaky trick.

When asked if that is OK, perhaps by the unwritten code of how to play the game, Howland shot back, “No.”

“The official said there is nothing he can do,” Howland said. “So I guess legally you can do it.”

Dentmon entered for Venoy Overton in the game’s first minute, after coach Lorenzo Romar benched the freshman for not running back on defense. Dentmon then took over for the Huskies, who had lost four straight — the last three at home.

Washington won its fourth consecutive home game against the Bruins dating to 2004. The Huskies are now 11-68 against teams ranked in the top 5, stretching back to 1950. Their previous win at home over such a foe was last March, against then-No. 2 UCLA.

“Coach asked me last week, ‘What’s gotten into you?’ I told him I just kept having these dreams of playing above my abilities,” Dentmon said. “Constantly, every night. It’s been weird.”

So was Washington’s unlikely resurrection against UCLA (21-3, 9-2), which lost for the first time in six games to fall into a first-place tie with Stanford in the Pac-10.

“They out-toughed us, out-hustled us. We just didn’t have it today,” said Josh Shipp, who led the Bruins with 19 points.

Collison took responsibility for the lack of fire — plus his season-low three points on 1-for-8 shooting, with four assists and eight turnovers. He was averaging 14.6 points coming in, and had scored all 18 of his points Thursday in the second half to lead a win at No. 17 Washington State.

“We didn’t have the same fight we had the last few games,” Collison said. “I take full blame. I’m the leader. I’m the captain. I have to step up.”

Three days after a blowout bow-down to Southern California that embarrassed them and challenged their pride, the Huskies bore into a team that has been to the Final Four in each of the last two seasons. They sprinted and dived to win loose balls. They had the bulk of Artem Wallace to push Bruins super freshman Kevin Love out of the lane and into frustration.

Oregon 92, California 70

BERKELEY, Calif. — Tajuan Porter hit four straight 3-pointers during a decisive run to start the second half and seven in all, and the Ducks made a school-record 18 3s to end a 16-game losing streak in the Bay Area dating back nearly eight years with a 92-70 victory against California on Saturday.

Bryce Taylor scored Oregon’s first seven points after the break and the Ducks made eight consecutive 3-pointers and 10 of 11 from long range during one stretch to quickly turn a two-point halftime lead into a rout. They wound up 18-of-31 on 3s and Taylor scored a team-high 28 points.

Malik Hairston had 15 points, five rebounds, five assists and three blocked shots before fouling out. He became the 10th Oregon player to reach 1,500 points after joining the school’s top-10 scoring list Thursday at Stanford.

Porter finished with 23 points, 7-for-11 on 3s, and Taylor started the 19-6 run after intermission for Oregon (14-9, 5-6 Pac-10), which rebounded from its worst offensive outing since late 1991 with one its most impressive this year. The Ducks, who managed only 14 total field goals in a 72-43 loss Thursday at Stanford, had dropped five of six and gone 0-3 on the road since an 84-74 victory at Arizona on Jan. 5.

Jerome Randle scored 17 to lead Cal (14-8, 5-6).

No. 9 Stanford 71, Oregon St. 56

STANFORD, Calif. — Lawrence Hill scored 14 points and reserves Kenny Brown and Taj Finger sparked a big first-half run that helped the Cardinal reach the 20-win plateau for the first time under fourth-year coach Trent Johnson.

Stanford (20-3, 9-2 Pac-10) followed up a 72-43 victory over Oregon on Thursday by going on a 15-0 run to end the first half and coast to the win against the Beavers (6-17, 0-11).

Marcel Jones led the Beavers with 13 points, Calvin Haynes added 12 and Seth Tarver had 11.

Oregon State interim coach Kevin Mouton, who took over when Jay John was fired last month, dropped to 0-5. The Beavers are trying to avoid becoming the first team to go through Pac-10 play winless since the 18-game schedule began in 1978-79.

Arizona State 59, Arizona 54

TUCSON, Ariz. — Jeff Pendergraph scored a career-high 29 points, and Arizona State rallied from a 16-point first-half deficit to defeat Arizona 59-54 on Sunday afternoon.

Pendergraph hit 12-of-16 shots from the floor as the Sun Devils swept the two-game season series from Arizona for the first time since 1995. The Sun Devils (15-7, 5-5 Pac-10) snapped a five-game losing streak.

After falling behind 22-6 in the first eight minutes, the Sun Devils outscored the Wildcats (15-8, 5-5) 53-32 the rest of the way.

Arizona State overcame a career-high 39 points by Arizona star Jerryd Bayless, who hit his first seven shots from the floor, including four from 3-point range. Bayless came within two points of the McKale Center scoring record of 41 points, set by former Wildcat Al Fleming against Detroit on Jan. 10, 1976.

No. 17 Washington St. 74, Southern Cal 50

SPOKANE, Wash. — Kyle Weaver scored 17 points to help the Cougars break a three-game home losing streak and make it a season sweep of the Trojans.

Taylor Rochestie added 13 points as Washington State (18-5, 6-5 Pac-10) shot 59.6 percent from the floor and registered nine steals against the Trojans. Weaver made all eight of his field goal attempts and surpassed 1,000th points for his career.

O.J. Mayo scored 14 points and Davon Jefferson 13 for Southern Cal (15-8, 6-5), which lost for only the second time in the past eight games and never really threatened.

Portland State 79, Sacramento State 56

SACRAMENTO, Calif. — Scott Morrison had 18 points, 11 rebounds and six blocked shots for Portland State in a 79-56 victory over Sacramento State Saturday night.

Jeremiah Dominguez had 20 points and three assists and Deonte Huff added 14 points, six rebounds and four assists for the Vikings (15-8, 8-2), who remain on top of the Big Sky Conference.

Jason Davis had 12 points, five rebounds and two steals to lead the Hornets (4-18, 2-9).

WOMEN

Stanford 69, Oregon State 59

CORVALLIS — Kayla Pedersen and the rest of the No. 6 Stanford Cardinal weren’t satisfied with another easy win.

This time, Stanford defeated Oregon State 69-59 on Saturday night.

“We’re not on top of the conference right now so we have to keep treating games like it is the NCAA tournament — one loss and we’re out,” Pedersen said.

The freshman forward had 21 points and 11 rebounds for the Cardinal (22-3, 11-2 Pacific-10), who remain in second place in the conference behind No. 9 California.

Candice Wiggins scored a game-high 25 points in Stanford’s 10th straight victory.

Ashley Allen had 17 points to lead the Beavers (10-14, 3-10), who have lost six straight.

It was “Think Pink” night at Gill Coliseum, a breast cancer awareness campaign by the Women’s Basketball Coaches Association. Fans were encouraged to wear pink, and the Beavers wore pink headbands and shoelaces.

No. 9 California 53, Oregon 34

EUGENE  — California held Oregon to its lowest scoring output in 30 years, and won in Eugene for the first time in 15 years.

Alexis Gray-Lawson scored 16 points and Devanei Hampton had 11 points and 11 rebounds and No. 9 California (21-3, 12-1) beat Oregon 53-34 on Saturday.

Oregon’s 34 points was its lowest scoring total since losing to Washington 51-34 in the 1977-78 season.

Micaela Cocks had seven points to lead Oregon (10-14, 4-9).