NFL tweaks referee uniforms ... again - Fandom - ESPN Playbook- ESPN
Why NFL referee Sarah Thomas wore an angel pin at Super Bowl
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NFL's First All-Black Crew Officiated 'Monday Night Football' Game : NPR
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Sports world reacts to all-black referees on MNF - HBCU Gameday
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At the Top of His Game - Harvard Law School | Harvard Law School
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How Do NFL Officials Communicate on the Field?
Ask Farmer: Why do NFL referees have numbers? - Los Angeles Times
Column: NFL officials make far too many mistakes, and it's worse in the playoffs - The San Diego Union-Tribune
Lo van Pham honored to be first Asian American NFL official – The Denver Post
NFL referees for AFC, NFC championship: Full list of official assignments for 2023 conference title games | Sporting News
NFL100: Before they were zebras, they were … candy canes? – Football Zebras
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Ex-ref says officials had 'administrative breakdown' in Steelers loss
NFL Officiating Crews for the 2022 NFL Season
2022 Roster of NFL Officials | NFL Football Operations
All-Black officiating crew makes NFL history
Official (gridiron football) - Wikipedia
