Jack Sanborn: Everything you need to know

The Bears signed Sanborn to a one-year deal on Wednesday, Courtney Cronin of ESPN reports Sanborn is returning to Chicago, where he spent the first three years of his career before signing with the Cowboys for the 2025 campaign. The 25-year-old has seemingly recovered from the groin injury that landed him on Dallas' injured reserve last November and will likely serve in a depth role with the Bears during the upcoming campaign.

Sanborn (groin) played in six games in 2025 before ending the season on injured reserve. He totaled 34 tackles and one defensed pass when healthy. Sanborn joined the Cowboys on a one-year deal last March and began the campaign as a starter, logging 32 tackles over his first four games. However, he suffered a concussion in Week 5 against the Jets, missed Week 6 against Carolina, and then was limited to special teams in Week 7 against Washington before hurting his groin and landing on IR. Sanborn was never able to make it back on the field, nor was he designated to return. He's slated to be a free agent.

Sanborn (groin) was placed on the injured reserve list Monday. Sanborn had already been ruled out for Monday night's matchup against the Cardinals, but he'll now be forced to miss Dallas' next four games after being placed on IR. The Wisconsin product appeared in six games prior to injury, recording 34 total tackles and one pass defended. Expect Shemar James to operate as the Cowboys' top middle linebacker while Sanborn is sidelined.