UCLA quarterback Nico Iamaleava is expected to miss the remainder of the season with a knee injury, sources tell CBS Sports’ Matt Zenitz. Iamaleava left Saturday’s 17-15 win over Oregon after getting awkwardly between two Ducks defenders.
A former five-star recruit, Iamaleava transferred from Tennessee to UCLA before the 2025 season, and he remained with the Bruins after Bob Chesney took over. In his second season with the Bruins, Iamaleava provided some stability at quarterback, even if his numbers didn’t stand out.
In over four games, Iamaleava completed 62.1 percent of his passes for 982 yards, four touchdowns and four interceptions while rushing for 144 yards and a score.
Looking ahead to the offseason, Iamaleava will have a big decision to make regarding the 2027 NFL Draft. Iamaleava has the tools to be a first-round selection, but he may need to spend one more season at the college level to prove his health and increase his draft stock.
When Iamaleava left the Oregon game, backup Ty Dieffenbach came in and ran the offense well enough to get the win. The senior completed three of his six pass attempts for 43 yards and a touchdown.
No. 12 UCLA’s first test without Iamaleava will be a 4-1 home game against Wisconsin on Saturday night.
Where are the Bruins going at QB?
Even though Dieffenbach replaced Iamaleava against Oregon, that doesn’t mean the starting role is his for the rest of the season. In his postgame press conference, Chesney admitted that it would be a “week-to-week” situation and that Dieffenbach’s mobility had earned him the slot as the primary guard against Oregon.
“We really work on a weekly basis here,” Chesney told 247Sports. “This week we felt like maybe we needed to run the quarterback a little bit more. And that’s where I thought Ty had a really good week. And that put us in this situation. It’s just one of those things. I’m sure if Madden had gone out there, he would have done a phenomenal job, too. But Ty was the guy we picked based on the previous week of practice, and I thought he did a really good job. But Madden will be there all along too, competing and fighting for this position with or without Nico.”
Although he played admirably, Dieffenbach’s appearance against Oregon was his FBS debut. A three-star recruit out of high school, Dieffenbach spent two years at Pitt before transferring to Cal Poly last season. He was a starter for the Mustangs last year before transferring to UCLA in the offseason.
During his lone season at Cal Poly, Dieffenbach completed just 56.8 percent of his passes for 1,305 yards, nine touchdowns and nine interceptions.
Dieffenbach’s resume — or lack thereof — likely leaves the door open for sophomore Madden Iamaleava, Nico’s younger brother. A four-star recruit in the 2025 signing class, Madden spent a few months at Arkansas before joining his brother at UCLA.
Madden Iamaleava even has a little experience, limited to just one pass attempt in his career. It fell incomplete.
This may be a scenario where Chesney simply rides the hot hand from week to week, but the good news is that not much will likely be asked of the quarterback.
How important is QB?
The quarterback really matters, since the Bruins can’t play someone who derails the entire offense. But will Chesney be able to find a game manager between Dieffenbach and Madden Iamaleava? Maybe that’s all he needs.
If Chesney can get average quarterback play the rest of the way, then UCLA’s College Football Playoff hopes are still alive because of how well the team handles the ball and plays defense.
The Bruins rank sixth in the nation in rushing yards per game with 253.2, and Wayne Knight is becoming a national superstar as a running back. This should allow UCLA to take some of the burden off its quarterback, whoever that may be.
It also helps that the Bruins don’t need to light up the scoreboard because of the way the defense plays. The Bruins are eighth in the Big Ten in defense, allowing just 18.0 points per game, and they are particularly good against the run, allowing just 87.6 rushing yards per game.
This means the quarterback does not need to air the ball to win. In fact, Nico Iamaleava wasn’t exactly turning heads with his play before his injury. Iamaleava’s older brother turned the ball over three times against Oregon, and UCLA still managed to pull out a win at Autzen Stadium.
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