The Los Angeles Chargers are signing left tackle Rashawn Slater to a four-year, $114-million contract extension, sources told ESPN's Adam Schefter.

Slater's new deal makes him the league's highest-paid offensive lineman with an annual average salary of $28.5 million, eclipsing the contract signed by Tristan Wirfs ($28.1M). The record-setting deal also includes $92 million guaranteed.

Slater has helped solidify the Chargers' offensive line since being selected 13th overall in the 2021 NFL Draft. The Northwestern product started 16 games his rookie season, earning second-team All-Pro recognition and a Pro Bowl nod. The 6-foot-4, 315-pound blocker transitioned from being a right tackle in college to protecting the blindside of quarterback Justin Herbert since joining the Chargers.

The 26-year-old offensive lineman has established himself as an elite blocker, but he's also evolved into a captain and mentor for a young Chargers team. Fellow offensive tackle Joe Alt credited Slater for helping him during his rookie campaign.

"(He's) taught me a ton," Alt said in 2024, per team reporter Eric Smith. "Rashawn being able to have so much experience and being right there with me and being able to watch the film has been such a big help for me."