LOS ANGELES (CBSLA.com/AP) — Norman Powell scored 22 points, Bryce Alford added 21 and UCLA used a 26-6 run over both halves to put away USC, 83-66, Wednesday night in the Bruins’ fourth straight win over their crosstown rival.

The win also marks UCLA’s third straight Pac-12 win.

Tony Parker added 14 points and Kevon Looney had 12 points and 10 rebounds for the Bruins (11-7, 3-2 Pac-12). They dominated the boards, 41-20, and owned a 46-30 edge in the paint, helped by the 6-foot-9 duo of Parker (seven rebounds) and Looney.

Nikola Jovanovic scored 20 points for the Trojans (9-8, 1-4), who have lost five of their last eight. Last season, they won just one Pac-12 game under new coach Andy Enfield. Darion Clark added 11 points.

Alford had his best game in a month, having struggled offensively since scoring 23 points in a loss against ranked Gonzaga. The sophomore guard came in shooting 20 percent in league play, but he hit 5 of 8 3-pointers.

USC kept it close for much of the first half, briefly taking a three-point lead with 2 1/2 minutes to go. UCLA had already launched its game-changing run, though, outscoring the Trojans 11-4 to close the half ahead 36-31.

The Bruins picked up where they left off, finishing off the 26-6 outburst over the first five minutes of the second half for a 51-33 lead. Alford hit back-to-back 3-pointers and Looney dunked before Alford’s fastbreak layup closed it out.

The Trojans cut their deficit to 61-52 on six straight points, capped by Jordan McLaughlin’s steal and dunk.

UCLA kept the pressure on with a 12-3 spurt to regain the 18-point lead they owned early in the half. Powell scored six points in the spurt. The Bruins improved to 7-2 at Galen Center since the Trojans’ arena opened in 2006.

The Bruins shot 50 percent in the first half. Their 10-0 run, bookended by 3-pointers from Alford and Isaac Hamilton, built UCLA’s largest lead of the half, 18-10.

The Trojans answered with a 17-7 spurt, including eight in a row by Katin Reinhardt and seven from Jovanovic, to take a 27-25 lead. But the Bruins had the final say, outscoring USC 11-4 to close the half with a five-point lead. UCLA had a 24-10 rebound edge in the half.

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