From AstroTurf to 'frankenturf': Inside the NFL's behind-the-scenes battle to fix its turf problem
Why doesn't college football use helmet communication like the NFL? Inside a new system that could change that - The Athletic
Do pro football players have a higher risk of dying earlier?
NFL Helmet Manufacturer Warned On Concussion Risk
The NFL's Helmet Tests Are Brainless
2023 NFL Draft profile: Why the Lions should draft Devon Witherspoon - Pride Of Detroit
Keeping Football Helmets Cool - ASME
NFL hopes to reduce head injuries with helmet experiment
2023 NFL Draft: Top Edge Rushers - The San Diego Union-Tribune
Tua Tagovailoa's head injury puts NFL concussion protocol under scrutiny - The Washington Post
2023 NFL Mock Draft: QBs taken with first three picks, Colts make Christian Gonzalez first defender selected, NFL Draft
He's not breathing': Ex-Lion Reggie Brown recalls fateful day
Knee injuries worry NFL players more than concussions
NFL hopes to reduce head injuries with helmet experiment