NFL hopes to reduce head injuries with helmet experiment – The Morning Call
Wake Up Washington Commanders adjust to guardian caps at first practice of training camp
NFL hopes to reduce head injuries with helmet experiment
Utes using protective Guardian Caps in fall camp
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Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
Guardian Caps data show more than 50% concussion drop among groups who wore them - Newsday
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NFL Mandated Guardian Caps: Controversial Change - Sports Illustrated Seattle Seahawks News, Analysis and More
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
What is a Guardian Cap? Meet the NFL's newest safety measure
What Pros Wear: Guardian Caps What are Those Helmet Covers Being Worn in Practice? - What Pros Wear