Guardian Caps debut at training camps throughout NFL
High school football teams go soft in the fight against brain injuries
Arizona Cardinals defensive end J.J. Watt not fan of the new league-mandated Guardian Caps on helmets
Guardian Caps Guardian Sports
NFL hopes to reduce head injuries with helmet experiment
Guardian Cap: What are and why the NFL asks this safety measure in helmets
No Pads Yet, But Jonathan Gannon Still Has Goals
High school football teams go soft in the fight against brain injuries
EXPLAINER: NFL using helmet caps for player safety, research
Puffy Guardian Caps Could Reduce NFL Player Concussions
Guardian Caps Exceed NFL's Expectations - Guardian Sports
Park High School football blazes safety trail with Guardian Caps
EXPLAINER: NFL using helmet caps for player safety, research
Anything we can do to protect them: East Clarendon uses Guardian Caps to protect against concussions - The Sumter Item
NFL Mandates Guardian Caps >> Guardian Sports