The N.F.L. Struggles to Tackle Its Latest Problem: Tackling - The New York Times

In the N.F.L. and at Big Companies, Diversity Playbooks Face Hurdles - The New York Times

Health issues in American football - Wikipedia

Fans Grapple With Football's Violent Pull After Hamlin Collapse - The New York Times

The Giants have an alarming tackling problem

Timeline: The NFL's Concussion Crisis, League of Denial: The NFL's Concussion Crisis, FRONTLINE

Explaining the NFL's latest concussion controversy and policy change : NPR

How tackle football's decline is changing the sport's demographics - Washington Post

Jets offensive tackle Mekhi Becton is set to play for the first time in nearly 2 years

Evolution of the NFL Player

Who are the best available NFL free agents? Justin Simmons, Odell Beckham lead list - The Athletic