Ed Hochuli, N.F.L. Referee, Has Long Had Fan Support - The New York Times
What are the black string-like things football referees wear on their hands for? - Quora
What are the black string-like things football referees wear on their hands for? - Quora
The Secret Life of NFL Referees - DuJour
Elite football referees predict where a foul will happen, research shows | Psychology | The Guardian
Guide to the Officials' Signals | NFL Football Operations
Social media reacts to replacement refs - ESPN - Tech - ESPN Playbook- ESPN
Whistle while you work, NFL referee style – Football Zebras
Give The Ref A Hand': New campaign urges grassroots fans to show their support for local officials | Football News | Sky Sports
NFL Referees Association files unfair labor practice charge against NFL - NBC Sports
NFL Week 9: Referee Shawn Smith assigned to Chiefs-Packers game
NFL referees approve deal - POLITICO
NFL teams, refs using new hand sanitizer devices created by Chester County PPE company
Rams vs. Buccaneers to Feature 1st All-Black Officiating Crew in NFL History | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
What Is The String On a NFL Refs Hand? (and much more about referee equipment) - YouTube
NFL Football Referee Touchdown Hand Signal Isolated Stock Image - Image of wisconsinart, referee: 35277149
Football refs could be wearing masks, gloves and using hand-held whistles if there is a season | Trib HSSN
7 Steps to Teaching Youth Athletes To Respect Umpires and Referees
Clap referees on to the pitch, clubs urged by charity
VIDEO: Ever Wonder What Referees Are Really Signalling?
When N.F.L. Zebras Chat With Lions and Giants and Bears - The New York Times
What is the string on NFL refs hand? | it's called a down counter and helps a ref keep up with the down (index finger 1st middle finger 2nd and so on) :
Ron Torbert named lead referee for Super Bowl LVI
