No. 2 Oregon leads Cal 24-10 at halftime on Saturday night at Memorial Stadium in Berkeley, although the lead could have come with a price.

The Ducks led 14-7 after the first quarter thanks to a pair of lengthy touchdown drives led by quarterback Marcus Mariota. Oregon took advantage of a personal foul penalty that gave the offense new life after a failed third down attempt, with Byron Marshall's 3-yard touchdown run giving the Ducks a one-score lead.

The two teams traded field goals in the second quarter and, trailing 17-10, the Bears appeared to be on their way to possibly tying the game. Cal would be stopped inside Oregon territory, with Vincenzo D'Amato's 48-yard field goal attempt sailing wide. The Ducks would take advantage, with Mariota completing 5-of-7 passes on the ensuing drive that was capped with a 10-yard pass to Josh Huff.

Mariota, who was 16-of-21 for 222 yards and two touchdowns, appeared to be injured at the end of the half, favoring his left shoulder as the team headed into the locker room.