Seeing yellow: The data behind penalties in the NFL
Stuff the yellow flag: Penalties on legal hits are dumb and confusing
College Lacrosse Ref Makes Epic Flag Toss
PFT] A shift from part-time to full-time officiating could cause some NFL officials to quit. Some within the league's power structure would be fine with that. Said one source, These guys are
Feature: This penalty flag, make penalty calls of your own with this penalty flag; Whether it's in reference to a game, or you make up your own game
Gejoy 6 Pieces Football Penalty Flag Tossing Flags Sports Fan Set Penalty Flag Referee Flag Party Accessory (Yellow)
I Can't Stop Watching This Ref Throw A Penalty Flag On Tramon Williams, by Alex B., Ride The Pine
Why Pastor James Coates' Imprisonment is Actual Persecution
NFL referees throw record-breaking amount of flags - The Aggie
NFL Coaches Yell At Refs Because It Freakin' Works
Long throw penalty flag with black ball SKU FX8-003
Football Officials Black Ball Long Throw Penalty Flag