third quarter

UCLA senior wide receiver Mikey Matthews expects the Bruins’ aerial attack to be as electrifying and dominant as their ground game was in a season-opening win over California.

The passing offense lived up to Matthews’ expectations against Cal — but only for a half.

After quarterback Nico Iamaleava completed 12 of 18 passes for 179 yards in the first half, he completed just two more passes for five yards — the Bruins’ only yardage in the third quarter.

The rushing attack carried the Bruins to victory, breaking open a tied game with three fourth-quarter touchdown runs.

UCLA receiver Mikey Matthews (7) celebrates after quarterback Nico Iamaleava (9) ran for a touchdown against Cal at California Memorial Stadium on Saturday.

(Godofredo A. Vasquez/For The Times)

While UCLA called a run-heavy script in the second half, throwing it just four times compared to 18 rushing attempts, the passing game clearly stalled.

Offensive coordinator Dean Kennedy said the offense had to improve after last weekend’s 45-24 victory, noting that two penalties in the third quarter — including on third and one — derailed drives and that the self-inflicted wounds were a teaching moment.

“You have to make sure that every drive, you’re treating it independently. There was a lull in the third quarter, but when you look at it, I was happy with how they responded,” Kennedy said as the team prepared for Saturday’s home opener against San Diego State. “Obviously, you’re not happy with the production of the third quarter, but you’re happy with how they responded in the fourth. There was always belief on the sideline. We had three really bad drives and that’s just as much on me as it is on anyone else.”

Iamaleava played a vital role in keeping the offense on track. And despite largely not contributing through the air in the second half, he looked more comfortable and confident than he ever had in his college career. Matthews called that poise Iamaleava’s greatest improvement since the duo arrived in Westwood last year.

Kennedy said the senior signal-caller was walking up and down the sideline, talking to teammates and stressing a “next drive” mentality.

And Iamaleava’s short-term memory focus echoed his coordinator’s in-game philosophy.

“We will make corrections on bad plays on Sunday, there will be things where we have to make in-game adjustments, but when you are talking about a missed assignment, there’s nothing you can do about it,” Kennedy said. “The only thing you can do about that is worry about ‘how do I get better, how do I learn from my mistake,’ and you have to do it in the moment. You are in a 60,000-seat stadium and it’s not the easiest thing to do, but having other people understand, ‘Let’s move on,’ that’s where he did a really good job.”

Leading up to the opener, Kennedy said he was “beyond confident” in Iamaleava as a leader, player and face of the program, and added that Iamaleava’s willingness to run hard and take hits instills conviction in the team and makes him an easy person to rally around.

“He’s had the opportunity to play young in his career. He’s been in the spotlight for so long,” UCLA assistant quarterbacks coach Jon Boyer said. “He’s dealt with victories. He’s dealt with adversity, and now he does feel valued, and I don’t want him to feel like he’s in it all alone ever.

“He’ll be tested this year where moments of doubt come in, and that’s our job to provide that vision of hope and come up with a plan to get him out of whatever he’s facing.”

Matthews, who led the receivers with four catches for 88 yards, is confident his quarterback will put the ball in the hands of many UCLA receivers he can trust.

“We’re deep in the receiver room. Landon Ellis, Semaj Morgan, Brian Rowe, Aidan Mizell, Shane Rosenthal. I can literally just go down,” Matthews said. “I feel like everyone is bound to have a breakout season, breakout game, whatever it is. Everyone’s going to eat in that room. That’s just how much we trust everyone throwing the ball down the field and everything like that.”

If anyone wants to know what “big-boy” football in Southern California looks like, Santa Margarita’s 21-20 road win over Corona Centennial on Friday night gave fans everything they expected from two powerhouse programs.

“There was greatness on that field,” Santa Margarita coach Carson Palmer told his players afterward.

From cornerback Caron Williams producing a pick six on the final play of the third quarter to Mighty Mouse 5-foot-4 running back Adrian Petero rushing for 108 hard-earned yards in 23 carries to run out the clock, the Eagles (2-0) are proving they are no one-hit wonder after winning last year’s Southern Section Division 1 championship over Centennial.

“Even if I can’t find a hole, I’ll make one,” Petero said.

Unlike that 42-7 loss at the Rose Bowl, Centennial rallied from a 14-0 deficit. An 11-yard touchdown run by Braylin Drake with 7:33 left put the Huskies within 21-20. But Santa Margarita’s Jake Martin deflected the PAT attempt, and the Huskies (1-1) never got another opportunity to score against a defense with top linemen, young and sensational linebackers and defensive backs who engaged in hand-to-hand combat with one of the best receivers in the nation in Quentin Hale.

Santa Margarita’s defense celebrates a pick six by Caron Williams (21) at the end of the third quarter from 30 yards.

(Craig Weston / For The Times)

Centennial was at a severe disadvantage by not having two potential starters available on its offensive line because of injuries. Then the Huskies lost a third lineman in the third quarter. Quarterback Jaden Jefferson was left having to run for his life from the outset but used his instincts and intelligence to find ways to succeed. He passed for 192 yards with touchdowns of seven yards to Hale and 24 yards to Kennie Leggett. He adjusted to the pass rush by scrambling up the middle for gains of 11 and 15 yards. Hale caught seven passes for 105 yards.

For some unknown reason, Williams, a junior, now has five of his six career interceptions against Centennial. He said the pick six was no surprise.

“I saw it coming,” he said. “I saw the quarterback’s eyes.”

“Defense suffocating,” is what Palmer told his players in his postgame talk, and he was right.

Santa Margarita’s defense controlled much of the first half because of its ability to put pressure on Jefferson. It wasn’t until Centennial’s final possession of the first half, when trailing 14-0, that Jefferson finally started to connect with Hale. Jefferson got the ball to Hale for a touchdown, rolling left and throwing off his back foot to find Jefferson in the back of the end zone.

Santa Margarita’s defense lost nine of its 11 starters to graduation and was supposed to need time this season to develop, but the guy who wears No. 99 for the Eagles, Kingston Jimmerson, had two sacks in the first half. He’s 6-foot-2, 270 pounds, only.a sophomore and likes to manhandle ballcarriers.

“When he’s a senior, he’s going to be an All-American,’’ Williams said.

Also contributing was 6-5, 225-pound freshman lineman Kaleb Herndon and linebacker Cruz Nunez, a transfer from JSerra. Then there’s freshman linebacker Aydan Steen, who contributed two huge tackles in the second half in critical situations.

Short touchdown runs by Petero and Jaion Smith accounted for Santa Margarita’s first-half touchdowns. Centennial fumbled on its first possession to set up Petero’s two-yard TD run.

The last time Centennial coach Matt Logan was on the same field with Santa Margarita, his face with bright red at the Rose Bowl. He blamed himself for his team’s poor performance. “We weren’t prepared to play football that night,” he said.

This time, the Huskies were able to stay close with the help of a defense that sacked Santa Margarita quarterback Fletch Palmer three times. Cal-bound Miles Schirmer was effective on the defensive line.

“The defense played phenomenal,” Logan said. “We were not on the same page on offense. The kids didn’t waver and kept fighting.”

About five miles separate Agoura and Westlake high schools, but there seemed to be a great deal more distance between them Friday night, as host Westlake throttled the Chargers 38-7 in a nonleague game.

Most of that gap came via the right arm of sophomore quarterback Ford Green, who dissected the Chargers, completing 14 of 18 passes for 257 yards and four touchdowns. For Green, and the Warriors (2-0), the victory eliminated any lingering doubts about their season-opener last week, a thrilling, 32-26 triple-overtime win against Newbury Park. Though Green threw two touchdowns last week and ran for the winning touchdown, he threw two interceptions and tallied only 139 yards through the air.

Against Agoura (1-1), Green completed his first 10 passes and finished the first half with three touchdowns and 219 yards. He added a fourth touchdown in the third quarter. Westlake finished the scoring in the fourth on a one-yard plunge by running back Nazir Esanbor and a 35-yard field goal by kicker Gabriel Goroyan.

“Last week showed how we fight as a team when we come together, but tonight showed how we can dominate,” Green said.

Though graced with two top-flight receivers in Charles Davis and Demare Dezeurn, both of whom have committed to Cal, Green spread the wealth Friday, completing passes to six Warriors. Those included a 14-yard strike to Davis on the Warriors’ first possession and a 57-yard touchdown pass to freshman Drew Gamboa later in the first quarter. Green also completed a 58-yard second-quarter touchdown pass to Erik Green and a 29-yard pass to Dezeurn early in the fourth.

While praising Green’s composure, accuracy, consistency and feel, Westlake coach Rick Clausen also singled out the offensive line.

“Obviously Game 1 wasn’t what we were looking for, but they practiced really hard this week and focused on what they needed to work on and didn’t worry about the exterior stuff,” he said, “They gave [Ford] the chance to succeed.”

Ford trumpeted the depth of his receiving corps.

“I trust every single one of my receivers that they can get the job done and they did,” he said. “And we’re a brotherhood, a family, and the ball gets spread out. Even if one guy is doing really well, I know every one of them will be ready when it’s their time.”