The Dallas Cowboys and defensive tackle Quinnen Williams agreed Monday on a three-year, $105.9 million contract extension, according to two people with knowledge of the deal who spoke to The Associated Press on condition of anonymity because the terms had not been formally released. The agreement, which includes $101 million in guaranteed money, is layered onto the two years remaining on Williams’s existing contract and will keep him with the franchise through the 2030 season.

A Top-Tier Payday

The extension carries an annual average value of $35.3 million, placing Williams second among all NFL defensive tackles in per-year earnings, behind only Jalen Carter of the Philadelphia Eagles, Dallas’s rival within the NFC East.

Williams, 28, was the third overall pick in the 2019 NFL Draft by the New York Jets and earned an All-Pro selection three years later despite New York finishing that season 7-10. Even with individual accolades, Williams has never played for a winning team and has yet to appear in an NFL playoff game — a gap he has acknowledged publicly since arriving in Dallas.

How Williams Landed in Dallas

The Cowboys acquired Williams from the Jets at the trade deadline in 2025, sending New York a 2027 first-round pick, a 2026 second-round pick and defensive tackle Mazi Smith, according to information published by the team. One of the first-round picks Dallas used to help facilitate the move had itself come from the trade that sent star pass rusher Micah Parsons to the Green Bay Packers just a week before last season’s opener, the AP reported.

In his first stretch with the Cowboys last season, Williams appeared in seven games, recording 21 tackles, three tackles for loss, 1.5 sacks and an interception, according to figures published by the team.

Immediate Impact, Then a Late-Season Slide

Williams’s arrival gave an early lift to a Dallas defense that had ranked among the league’s worst. The Cowboys won their first three games after the trade before a 44-30 loss to the Detroit Lions triggered a slide of four losses in five games, contributing to Dallas missing the playoffs for a second consecutive year. The team finished the 2025 season 7-9-1 in Brian Schottenheimer’s first year as head coach, powered by one of the NFL’s most productive offenses even as the defense struggled — Dallas allowed the most points in the league, at 511, during that stretch.

In response, the Cowboys overhauled their defensive coaching staff this offseason, hiring Christian Parker as defensive coordinator to replace Matt Eberflus, who was let go after a single season. The front office has positioned Williams as a central piece of that rebuilt unit heading into the coming season.

Front Office Reaction

Cowboys chief operating officer and co-owner Stephen Jones, who said earlier in training camp that the team was open to negotiating an extension with Williams and his representatives, confirmed the deal’s significance in comments to the team’s official website. “It’s a big part of all the moving parts that went with our trade last year,” Jones said. “I think this kind of, at the end of the day, puts a bow on top in terms of knowing that we’re going to have Q here.”

Cowboys defensive line coach Marcus Dixon also spoke to the reward the extension represents for Williams personally. “You’re just happy about it for a guy like that,” Dixon said. “Like he’s been rewarded for his hard work, the way he approaches the game, how he is with his teammates, his love for the game, how he’s always trying to perfect his craft. But he wants to win, and he’ll tell you that.”

Broader Roster Context

The Williams extension comes amid a busy stretch of contract activity for Dallas. The Cowboys were unable to reach a long-term agreement with wide receiver George Pickens before the franchise tag deadline and instead applied the tag to buy additional negotiating time into the 2026 season. Separately, on Saturday, running back Javonte Williams agreed to a three-year, $24 million extension of his own, following a career-best 2025 season in which he rushed for 1,201 yards and 11 touchdowns.

Dallas is also preparing for an unusual travel schedule this year, with the team set to play its first game overseas since 2014 — and its first-ever game in South America — in Rio de Janeiro, Brazil.

What Comes Next

With Williams under contract through 2030 and a new defensive coordinator in place, the Cowboys enter the season having settled one of their most significant roster questions heading into training camp. Whether the extension translates into the improved defensive performance the franchise is banking on will not be clear until the season begins.