Slater Is Out. The Chargers' Offensive Line Is Now a Roster Exercise.

The depth chart at offensive tackle reads Trevor Penning — questionable — followed by Alex Harkey and Isaiah World. That is not a rotation. That is a team praying a backup and a practice-squad candidate can protect a franchise quarterback against a Buffalo front that will absolutely test the proposition. Rashawn Slater, the anchor of this line and the one player whose September return felt like a genuine stabilizing force, is listed out. The pillar is gone.

What makes this hurt beyond the obvious is the sequence it completes. Tyler Biadasz went down in August with an ACL. Trey Pipkins, signed as a contingency, is on injured reserve. Kayode Awosika is out. Joe Alt is questionable. The Chargers have now cycled through their starters, their depth, and their emergency options — and they are still playing games. Jacob Spomer and Rodney Shelley, both undrafted free agents, made this roster because the math demanded it. That was supposed to be the floor. Slater going out suggests the floor had a trap door.

Here is the number that reframes all of it: in 2025, the Chargers won 10 more percentage points of their games than their underlying point differential said they should. They went 6–2 in one-score games. That kind of performance is real, but it is also fragile — it depends on execution at the margins, on protection holding up in the fourth quarter, on a quarterback getting clean enough pockets to make the throws that close out tight contests. Justin Herbert threw for 3,886 yards and 26 touchdowns last season behind a line that, at its best, was functional. What happens to those numbers when the line is, at its best, surviving?

The answer is probably not catastrophic — Herbert is good enough to compensate for a lot — but the margin for error that already looked thin on paper has now been shaved further. The 2025 Chargers were a team that outperformed their talent in close games and then collapsed when depth ran out in December. The 2026 version is being asked to replicate that clutch-moment execution with worse personnel than the team that eventually broke down. That is not a sustainable ask.

My read is that the Chargers need to find a veteran tackle — anyone with meaningful snaps — before this situation becomes irreversible. The injury list at this position is not a bad-luck story anymore. It is a structural failure that was visible in training camp and has now fully materialized. Penning's questionable tag means the team could be starting a player who hasn't been cleared, behind a backup who has logged zero meaningful production this season. Herbert deserves better than that. More practically, he needs better than that if this team has any hope of recreating the close-game execution that papered over its flaws last year.