What's Around These NFL Players' Neck??
What are World Cup players wearing around their necks?
Why Don't Nfl Players Wear Neck Rolls Anymore? - Metro League
Peyton Football blazes a trail, outfits all its players with Q-Collars believed to reduce risk of brain injury, High School Sports
Experts uncertain of benefits of new wearable device to prevent brain injuries - ABC News
Q-Collar: A New Way to Play Safer
Tony Pollard Interview: His Approach and Why He Wears The Q-Collar
Drue Tranquill Finds Collision Safeguards in Revolutionary Q-Collar
Will This Device Protect Athletes' Brains, or Only Make Them Think It Does? - The New York Times
Explained: What Is The Q-Collar Tom Kohler-Cadmore Has Been Wearing In The Hundred?
Hard-to-see experimental device Luke Kuechly wears on field might save his brain
What Is the Q-Collar, the Band NFL Players Wear Around Their Necks?
What is the Q Collar, the device NFL players are wearing around their necks