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NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
NFL hopes to reduce head injuries with 'goofy' helmet experiment
Giant hats: How NFL player Brian Robinson sparked the most genius marketing stunt
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Guardian Caps leave some NFL players and coaches with concerns: 'You feel like a bobblehead' | Sporting News
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Who has the most international caps ever? Cristiano Ronaldo sets another record in men's football | Sporting News
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Modern day England Caps won by Andros Townsend. | England caps, England football, England football team
Cartoonishly Large Hats Are All the Rage Right Now. Here's Why
