NFL hopes to reduce head injuries with helmet experiment – The Morning Call
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Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Collective Force of Head Hits Increases Odds of CTE, Study Says - The New York Times
Could one of these helmet camo nets be good for hiding the thermal signature of your face? : r/NightVision
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
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Bills DE Greg Rousseau out vs. Jags; LB Von Miller hoping to play, National