NYSportsJournalism.com - NFL Guardian (Caps) Of The Preseason
NFL Mandated Guardian Caps: Controversial Change - Sports
Guardian Caps leave some NFL players and coaches with concerns
What is the Q Collar, the device NFL players are wearing around
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play
EXPLAINER: NFL using helmet caps for player safety, research
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play
Players, coaches react to mandatory use of Guardian Caps
Buffalo Bills Accustomed to NFL Mandated Guardian Caps
Could Guardian Caps be used during NFL games for player safety
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play
NFL exec suggests Guardian Caps worn to protect players during
Non-contact knee injury to Anthony Schwartz thwarts his
Study: Limiting contact in practice reduces football head injuries