Gibbens signed a two-year contract with the Cardinals on Monday, Darren Urban of the team's official site reports.
Arizona was in need of depth at off-ball linebacker after releasing Akeem Davis-Gaither, and Gibbens has been tabbed as his replacement. While Gibbens started eight of his 17 regular-season appearances for the Patriots last year, he may not be assured a regular role off the bat with Mack Wilson (ribs) and 2025 fourth-round pick Cody Simon also on the Cardinals roster. Gibbens tallied 81 tackles, including 1.0 sack, four pass defenses and one forced fumble in 2025.