STANFORD, Calif. (AP) _ UCLA sustained the most lopsided loss in its storied history, falling 109-61 to No. 21 Stanford on Brevin Knight's 25 points Thursday night.

UCLA, which has won a record 11 NCAA championships, surpassed its previous worst defeat of 38 points in a 102-64 loss to Arizona in 1989. The Bruins (7-4, 2-1 Pac-10) trailed 17-1 in the opening minutes on their way to the 48-point rout.

The Cardinal (9-2, 2-1) made 15 3-pointers, breaking the school record of 14 against Alaska-Anchorage on Dec. 18, and opened a 31-point lead at halftime.

UCLA, which entered leading the nation in field goal shooting percentage at 54.9 percent, missed one shot after another to fall hopelessly behind in the first 20 minutes. The Bruins shot just 33.3 percent from the field in the first half and finished just 36.7 percent.

Tim Young had 14 points and 10 rebounds added for the Cardinal, who snapped the Bruins' four-game winning streak. Toby Bailey's 14 points led the Bruins, who lost for only the the fifth time in their last 39 conference games.

Stanford, the top-shooting team in the conference from 3-point range, made 15 of their 32 shots from the beyond the arc, including a 6-for-7 effort by Knight.

Stanford, which also outrebounded UCLA 45-26, was almost as good from 3-point range (46.9) as it was shooting from the field (56.5).

Knight set the tone when he made a 3-pointer for Stanford's first points of the game, and then started a fastbreak off a turnover by Bailey.

As Knight drove to the basket, J.R. Henderson leaned into the Stanford guard and shoved him hard. Knight bounced off the floor, glared at Henderson, who was called for an intentional foul, and made one of two free throws.

Stanford kept possession because of the intentional foul and Young converted on a putback.

Jelani McCoy made one of two free throws for UCLA's first point but Stanford then took off on an 11-0 burst, ignited by a 3-pointer by Knight.

The Bruins pulled to 24-12 on a layup by Henderson but Stanford pulled away again, opening a 41-15 advantage as Arthur Lee hit a pair of 3-pointers and Ryan Mendez drained another to close out a 17-3 flurry.

Both teams emptied their benches with some 10 minutes remaining.