https://yestino.com/entities/guardian-caps-13ffd6Every event involving Guardian Capsenhttps://yestino.com/events/the-nfl-says-guardian-caps-make-football-safer-the-science-i-38ea0chttps://yestino.com/events/the-nfl-says-guardian-caps-make-football-safer-the-science-i-38ea0cTue, 22 Sep 2026 16:15:52 GMTGuardian Caps have become one of football’s most visible attempts to reduce concussions. Sources: Yahoo Sports