Chicago Bears rookie Dillon Thieneman faces expanded secondary responsibilities

Chicago Bears rookie safety Dillon Thieneman enters his first NFL season with increased expectations following a knee injury to veteran teammate Coby Bryant. Expected to be out for four to six months, Bryant’s injury forces the Bears to accelerate the development of their 2026 first-round draft pick. Thieneman has been training across multiple positions in the secondary to add versatility to a defense aiming to improve upon a 2025 campaign marked by high turnover totals but significant yardage and scoring deficiencies. Coaches have utilized the rookie in preseason action to evaluate his progress in coverage. With the secondary currently dealing with personnel gaps, the team relies on Thieneman to adapt quickly to the professional level of play. The rookie must now navigate both the mental demands of defensive coverage assignments and the physical workload of an immediate starting role.

• 4:27 PMYahoo Sports — Dillon Thieneman Has More Pressure on Him Than Expected