STANFORD -- With high-scoring All-America Chiney Ogwumike all but neutralized Friday night, Stanford had to find offense from other sources.

Fortunately for the fourth-ranked Cardinal, it found plenty in its 72-55 win over UCLA at Maples Pavilion.

Ogwumike still wound up leading Stanford with a game-high 21 points and also grabbed 15 rebounds for her 14th double-double of the season. However, the senior forward -- who came in averaging 27.3 points per game -- needed help generating offense, especially early.

Ogwumike made just one of her first six shots as UCLA's 2-3 zone effectively kept her Cardinal teammates from getting the ball to her inside.

"It took awhile for me to adjust to their physicality," Ogwumike said.

UCLA coach Cori Close said she'd "never been so thrilled to hold someone to 21 points."

However, her joy was dampened somewhat by the Bruins' struggles to keep Ogwumike's teammates from scoring. Lili Thompson and Sarah James scored 15 and 11 points, respectively, while freshman Erica McCall added 12.

Guard Amber Orrange had something to do with that, dishing out eight of the Cardinal's 20 assists.

"Once they get the ball moving, they're really hard to stop," Close said.

The win set up a first-place showdown between Stanford (18-1, 7-0 Pac-12) and USC on Monday night. The Trojans (14-6, 7-1) trail the Cardinal by a half-game in the Pac-12 standings after beating No. 19 Cal 77-70 on Friday.

Cardinal coach Tara VanDerveer said her team will have to play much better than it did Friday to keep USC below it in the standings. Stanford committed 16 turnovers and gave up too many offensive rebounds for VanDerveer's liking.

"I was upset with how casual people were with the ball," VanDerveer said. "We were kind of like a fighter who waited until we got a bloody nose before we started fighting."

After leading just 36-35 at the half, Stanford fell behind early in the second when UCLA's Nirra Fields buried a long jumper. However, Mikaela Ruef got the lead back for Stanford moments later when she converted a 3-point play. That started an 11-2 run in which James buried two 3-pointers to help put the Cardinal ahead to stay.

Antonye Nyingifa led UCLA (10-10, 4-4) with 18 points.

Monday's game

USC (14-6, 7-1 Pac-12) at Stanford (18-1, 7-0), 6 p.m., ESPN2