Guardian Cap Results: “Exceeded Our Expectations”
EXPLAINER: NFL using helmet caps for player safety, research
No Pads Yet, But Jonathan Gannon Still Has Goals
NFL expands rule against misuse of helmet; Guardian Caps required
NFL hopes to reduce head injuries with helmet experiment
NFL hopes to reduce head injuries with helmet experiment
NFL introduces Guardian Caps across league to limit number of
What are Guardian Caps and how are they helping football teams?
Eagles players on Guardian Caps: 'We look a little goofy,' but all