No. 7 Arizona 57, UCLA 47: Gabe York scored 13 points off the bench and the Wildcats shook off slow starts to both halves to post their 36th straight win at home.

Dusan Ristic scored all 12 of his points in the first half and Arizona (24-3, 12-2 Pac-12) won its fourth straight. The Wildcats didn't score a point for the first six-plus minutes of both halves but got 11 points from T.J. McConnell and seven points and 10 rebounds from Stanley Johnson while holding UCLA to its second-lowest scoring total of the season.

Bryce Alford led UCLA (16-12, 8-7) with 22 points but the Bruins lost three players to fouls while dropping their second straight game. Norman Powell finished with 11 points and Kevon Looney had 10 but UCLA's bench went scoreless and, Looney and starter Tony Parker fouled out.

UCLA led 7-0 but the stifling Arizona defense held the Bruins to 11 points the rest of the half and led 32-18 at the break, getting 24 points off the bench. Ristic paced the offense in the first half and the Wildcats limited the Bruins to 25 percent shooting before the break.

The Bruins, however, scored the first 17 points of the second half to take a 35-32 lead but Arizona regained the lead on a pair of free throws by Johnson with 9:31 left and later extended the advantage to 49-43 with 4:41 left when Johnson hit his first field goal after eight misses. Johnson's basket was part of an 8-2 run and UCLA never got closer than four the rest of the way.

GAME NOTEBOOK: Arizona moved a half-game ahead of Utah atop the Pac-12 standings. ...Parker picked up his fourth foul in the first minute of the second half and picked up his fifth soon after re-entering the lineup and finished with two points. ...Arizona outrebounded UCLA 40-23 and the Bruins finished with one offensive board.