Guardian cap' to prevent head injuries mandated for practices, CFL says | Globalnews.ca
Marshall University Teams up with Athlete Intelligence to Minimize Head-Impacts in Football | Athlete Intelligence
What are Guardian Caps? NFL players sport specialty helmets for 2022 minicamp | Sporting News Canada
Effectiveness of headgear in football | British Journal of Sports Medicine
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Could magnets in helmets reduce football concussions? | Science | AAAS
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Guardian cap' to prevent head injuries mandated for practices, CFL says | Globalnews.ca
Riddell's Axiom could be breakthrough helmet for football | CTV News
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Seeking to reduce head contact, NFL mandates use of Guardian Cap helmet for early portion of training camp - ESPN
3 Ingenious innovations from the NFL's Helmet Challenge | Digital Trends
Football Canada Partners up with Gamebreaker Headgear to Protect Athletes! - Football Canada
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