Guardian Cap debuts during minicamps in effort to reduce avoidable head contact
NFL makes Guardian Caps mandatory for many positions through second preseason game - NBC Sports
Guardian Caps Debut During NFL Minicamps
NFL report: concussions dropped 50 PERCENT when players wore new 'Guardian Caps' over the summer
NFL report: concussions dropped 50 PERCENT when players wore new 'Guardian Caps' over the summer
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Guardian Caps Debut During NFL Minicamps
Guardian Cap debuts during minicamps in effort to reduce avoidable head contact
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Guardian Caps NFL: What Player Positions Are Required To