college career

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.”