The Dallas Cowboys locked up defensive tackle Quinnen Williams on a three-year, $105.9 million contract extension, sources confirmed Monday, keeping the 28-year-old under contract through the 2030 season. The deal includes $101 million in guarantees, with $63.35 million fully guaranteed at signing — the most guaranteed money ever handed to a defensive tackle at signing, according to ESPN.

Williams' $35.3 million average annual value ranks second among defensive tackles league-wide, trailing only Philadelphia's Jalen Carter and edging past Tennessee's Jeffery Simmons, per CBS Sports. The extension comes as Williams enters his eighth NFL season and first full year in Dallas after the Cowboys acquired him from the New York Jets in a 2025 trade that sent two high draft picks to New York.

A COWBOYS DEFENSE BUILT AROUND HIM

Dallas has made Williams the centerpiece of its defensive rebuild since the trade, and locking him in through 2030 signals the front office views him as a foundational piece alongside the team's younger core. Williams was a first-round pick out of Alabama in 2019 and had previously signed a four-year, $96 million extension with the Jets before being dealt to Dallas.

The move also reflects a broader spike in guarantees for elite interior defensive linemen this offseason, with Carter, Simmons and now Williams all resetting the market within a matter of months, according to NFL.com. Teams are increasingly willing to pay a premium for disruptive interior pass rushers who can also anchor the run defense.

Williams is expected to remain a full participant in Cowboys training camp as the team continues preseason preparations, with the new deal removing any lingering contract uncertainty heading into the regular season.