No. 22 Arizona State entered Saturday night’s contest alone atop the Pac-10 standings. No. 4 UCLA had lost at home to USC hours earlier, and the Sun Devils were the only team still unbeaten in conference play.

Brook Lopez and the Stanford Cardinal changed that in a hurry.

Lopez, the sophomore center, scored 10 unanswered points during a second half run, and the Cardinal rebounded from an abysmal first half to down Arizona State 67-52 Saturday night at Maples Pavilion.

The Sun Devils (14-3, 4-1 Pac-10) stymied Stanford in the first half with a swarming zone defense, holding the Cardinal to just 36 percent shooting from the field; ASU took a 30-20 lead into the break. But Stanford (15-3, 4-2) stepped up its execution on both ends of the floor after the break and outscored Arizona State 47-22 in the second half.

“The first half was frustrating, we weren’t playing with much energy,” said junior guard Anthony Goods, who was suffering from an upset stomach. “We knew we were playing below our ability, but we didn’t get down... we were able to pull through in [the] second half.”

Goods scored 12 of his 14 points in the second half, while Lopez added 19 points and a career-high 16 rebounds. He scored at will in the paint in the second half after opening the game with 1-for-10 shooting.

Much of that was due to Arizona State big man Jeff Pendergraph spending half of the second period on the bench with four fouls. After scoring seven in the first half, Pendergraph was scoreless after the break.

“I really just had to get back into the game,” Lopez said. “I was kind of playing soft and Pendergraph was getting the better for me. I really had to attack the basket.”

Freshman guard James Harden led the Sun Devils with 16 points, after scoring 27 Thursday night in Arizona State’s 99-90 double overtime victory over California.

Along with Lopez’s dominant play in the paint, the Cardinal capitalized on its physical advantages inside to out-rebound the Sun Devils 67-52, including a 29-9 edge on the boards in the second half.

“We played the second half,” coach Trent Johnson said. “That was good to see. We were struggling the first half in all phases... But in the second half I thought we hit a couple shots and [on] defense we turned it up a notch and we dominated the glass.”

Second-year Arizona State coach Herb Sendek had his squad ready and motivated on the defensive end to start the game. The difference in the second half, he said, was rebounding.

Stanford’s turnaround was “clearly a function of them just annihilating us on the backboard,” Sendek said. “In addition to that, they played excellent defense and really whipped us in every way. I thought they were incredibly physical and really beat us up — they took it to us in the second half.”

The Sun Devils also committed seven turnovers to Stanford’s three in the second half.

While Lopez and Goods provided the biggest scoring boost after the break, the Stanford reserves — including senior forward Taj Finger and sophomore Landry Fields — helped buoy the stalwart defensive stand that made the difference in the second half.

“We got contributions from everybody,” Johnson said. “That group came in and gave us a spark.”

Lopez began his personal 10-0 run with 8:34 remaining, scoring on a variety of lay-ups, jumpers, putbacks and free throws. After Ty Abbot made a free throw with 5:37 to go, the Cardinal outscored Arizona State 17-9 to finish the game.

With Saturday’s win, Stanford now sits only one-half game behind UCLA, Arizona State and Washington State in the Pac-10 standings.

“We’re right back in the hunt,” Goods said. “We’ve just got to take it one game at a time, keep getting win after win. It’s a long season.”