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Football Zebras - Analysis and commentary of the NFL's officials and the calls they make
2018 NFL season, American Football Wiki
NFL's first Black referee, NC-born Johnny Grier, dies at 74
August 2022 – Football Zebras
Bill Vinovich Named Super Bowl Referee, Despite Stain Of Infamous Missed Pass Interference In Saints-Rams - CBS Boston
NFL officials honor late colleague with patch on hats – Football Zebras
Football Zebras - Analysis and commentary of the NFL's officials and the calls they make
DC Sports Huddle: The curious case of Lamar Jackson and what to expect from Terps' tournament run - WTOP News
NFL referee appeared to hip-check a player just before throwing controversial, game-changing penalty flag