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Jason Kelce puts bubblewrap on his helmet, mocking the NFL's dumb new Guardian Cap rules in training camp
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
Jason Kelce puts bubblewrap on his helmet, mocking the NFL's dumb new Guardian Cap rules in training camp
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NFL expands rule against misuse of helmet; Guardian Caps required in regular season, postseason
Shell game: Player safety looming concern as new season approaches, Local Sports