2021 NFL Draft: What the Bills didn't do and one thing Buffalo definitely got right
Ranking the Buffalo Bills' top 10 players under-25 years old
Buffalo Bills defense is experienced, cohesive and mean in leading the NFL
2021 Defensive All-Rookie Team: Micah Parsons leads the way
The moment Josh Allen took over as the leader of the Bills - Sports Illustrated
Ranking the Buffalo Bills' 2021 defensive needs - Buffalo Rumblings
Buffalo Bills defensive end A.J. Epenesa (57) during the first half of an NFL football game
Bills vs. Colts: Trends after NFL preseason Week 1 action - Buffalo Rumblings
Chris Brown on X: The #Bills defense ends 2021 as the NFL's best & in 6 other different defensive categories as well. Hell of a year by Leslie Frazier's crew. Details here
Projecting the Best and Worst NFL Defenses in 2023 - The Ringer
NFL defenses: Ranking all 32 teams' defense, 1-32