PASADENA, Calif. (AP) Ty Dieffenbach threw for 232 yards and two touchdowns and overcame a left shoulder injury that sidelined him, and No. 4 UCLA Bruins remained unbeaten with a rain-soaked, 22-14 victory over Illinois Fighting Illini on Friday night.

Aiden Mizell had six catches for 176 yards and a touchdown, and Semaje Morgan added 56 yards receiving and a score for the Bruins (10-0, 7-0 Big Ten, No. 4 CFP). Scooter Jackson had two interceptions, the last with 2:50 left to stymie the Illini (6-4, 4-3).

UCLA started a season 10-0 for the third time in program history.

Dieffenbach left with 35 seconds to go in the first half after he fell hard on his shoulder following a hit by defensive lineman Carter Janki. Third-stringer Madden Iamaleava played the next three series for the Bruins as Dieffenbach remained in the locker room.

Dieffenbach returned with 55 seconds left in the third quarter. He led UCLA on a seven-play, 75-yard scoring drive on his first drive back, capped by a 26-yard touchdown pass to Morgan.

Dieffenbach, a senior transfer from Cal Poly, completed 13 of 20 passes and improved to 5-0 as the Bruins' starting quarterback. He became the starter after Nico Iamaleava, the older brother of Madden Iamaleava, sustained a season-ending knee injury against Oregon on Oct. 10.

The Bruins had three interceptions, a fumble recovery and a safety while limited Illinois to 240 yards. UCLA has held seven straight opponents to 20 points or less and upped its season total to 31 takeaways, most in the nation.

Katin Houser went 16 of 34 for 176 yards with two touchdowns and three interceptions for the Illini, who saw their four-game winning streak snapped. Kaden Feagin caught an 18-yard touchdown pass and Collin Dixon hauled in a 7-yard touchdown pass.

The Bruins jumped out to a 10-0 halftime lead. On just the fifth play of the game, Dieffenbach hit Mizell on a 54-yard touchdown strike down the sideline. It was Mizell’s third straight reception that resulted in a touchdown after he had two 75-yard scores against Maryland last week.

Mateen Bhaghani added a 20-yard field goal with 1:26 remaining before halftime. UCLA got the ball back for one more possession, but Dieffenbach went down and left the game with a trainer to end any hopes of another score before the break.

Aiden Gobaira sacked Houser in the end zone for a safety to extend the Bruins’ lead in the third quarter. After Illinois scored its first with a touchdown to cut it to 12-7, Dieffenbach returned and found Morgan early in the fourth quarter to re-extend the lead.

Houser connected with Dixon with 7:14 remaining to bring Illinois within a touchdown at 19-14. The Illini forced a three-and-out to get the ball back and had a chance to take the lead, but Jackson intercepted Houser's pass with 2:50 remaining.

Bhagnani kicked 37-yard field goal and Illinois’ last-gasp attempt ended with a turnover on downs at its own 33.

Houser was injured on the Illini’s final drive and replaced by backup Carson Boyd.

Illinois: The Illini have attained bowl eligibility and will try to bounce back against Iowa next Saturday.

UCLA: The Bruins remain in the driver’s seat for a top College Football playoff berth. Their 10-game winning streak tied a school record.

Illinois: Hosts Iowa on next Saturday.

UCLA: At Michigan next Saturday.

---

Sign up for Top 25 poll alerts here, visit the Top 25 here and see AP’s full college football coverage here

Copyright 2026 STATS LLC and Associated Press. Any commercial use or distribution without the express written consent of STATS LLC and Associated Press is strictly prohibited.