Dolphins' defense gets motivational words, then delivers vs. Patriots
Why do NFL/football defenses tire more easily than offenses? - Quora
Why The NFL Can't Rely On Defense
Offensive X-factors for all 32 NFL teams, from Justin Fields' new weapon to DeShaun Watson returning to form
How Gus Malzahn Teaches Quarterbacks to Recognize Defensive Coverages - College and Magnolia
No D in Chicago? Bears need wholesale improvement from Matt Eberflus' defense after offseason overhaul
NFL Defense Rankings: Browns, 49ers, and Ravens Among the Best in Week 6
The Future of NFL Defenses Lies in a Lime-Green Dot - The Ringer
In defending new Dolphin Tyreek Hill, Patriots hope they're not fishing for answers - The Boston Globe
Can the 4-2-5 still stop the spread? - Football Study Hall