The Chicago Bears have made significant changes to their defensive lineup following the 2025 NFL Draft, welcoming eight new rookies, including tight end Colston Loveland and defensive tackle Shemar Turner. The starting defense largely remained intact, but some position battles are brewing, particularly at cornerback with Tyrique Stevenson facing competition.

Montez Sweat, despite a disappointing season impacted by injuries, remains a key figure on the defensive front, while new additions like Dayo Odeyingbo and Grady Jarrett aim to bolster the pass rush. Jarrett, a proven leader and former Pro Bowler, will be pivotal in solidifying the defensive line alongside the promising Gervon Dexter. Linebackers T.J. Edwards and Tremaine Edmunds continue to be crucial, but both must elevate their performances this season. Cornerbacks Jaylon Johnson and Kyler Gordon are expected to play essential roles, particularly under new defensive coordinator Dennis Allen, whose aggressive style could see them thrive.