Chris Smith had 15 points and five rebounds to lead UCLA to a 65-52 upset of cold-shooting, 23rd-ranked Arizona in a Pac-12 game Saturday at Tucson, Ariz.

The Wildcats (16-7, 6-4 Pac-12) shot only 25.4 percent from the field and 26.1 percent from 3-point range. UCLA shot 51.1 percent from the field and 52.9 percent from beyond the arc. Tyger Campbell added 12 points and five assists for the Bruins (13-11, 6-5).

Zeke Nnaji led Arizona with 14 points, hitting just 2 of 8 attempts from the field. He was 10 of 10 from the free-throw line and added 10 rebounds. Josh Green had 11 points on 3-of-11 shooting.

The Bruins persevered through foul trouble throughout. Cody Riley and Jaime Jaquez Jr. each picked up their fourth foul less than halfway through the second half.

UCLA took a 29-28 lead at halftime highlighted by its defense against Arizona's top three scorers: Nnaji, Nico Mannion and Green. The trio, all freshman, combined for only 12 points on 3-of-15 shooting from the field.

Nnaji, who entered the game averaging a team-best 16.3 points a game, did not make a field goal in the first half. He went 0-for-5 but made all four of his free throws. Mannion (14.5 points a game) had five points on 2-of-6 shooting, and Green (12.0) made a 3-pointer for his only points.

Jemarl Baker's three 3-pointers in the half carried Arizona before the break.

UCLA outscored Arizona 9-2 to start the second half to take a 38-30 lead, as the Wildcats came out making only 1 of 5 shots and missing all three 3-point attempts.

Arizona did not have a scorer in double figures until Nnaji made two free throws with 11:09 left in regulation to give him 10.

Eight straight points by Arizona cut the lead to 45-44 with 9:47 left. Six of those came on free throws. At that point, the Wildcats had scored six points from the field in the second half and 10 from the free-throw line.

But UCLA responded with a 14-0 run to increase its lead to 59-44 with 5:19 left. David Singleton capped the run with a 3-pointer.

Arizona went through a 0-of-10 stretch from the field before Ira Lee made a layup. By that time, UCLA led 63-48.

--Field Level Media