What happened: Jim Harbaugh said the first unit will exit after the opening series, leaving the backups to finish the game. Kickoff is set for 7 p.m. PT.
Why it matters: The appearance gives Herbert his first live work in Mike McDaniel's new offense. It also provides a dress rehearsal with a new center before the 2026 opener.
By the numbers: Herbert completed 2 of 5 passes in his 2025 preseason debut, including gains of 16 and 29 yards.
What to watch: The preseason concludes Aug. 27, when the starters are slated to play two series.