NFL players will all be tracked by RFID chips this season
Sports Flashback: The birth of instant replay – Delco Times
The NFL's Brewing Information War - The Ringer
Technology is no excuse to play fast and loose with the refs
Sarah Thomas first female ref in NFL playoff history
The NFL Is About to Use 2021 Tech and Data to Change the Game for 2022
Week 7 officiating video: legal blocks, instant replay, 10 second
Officiating video: game-ending replay, an extended catch process
49ers-Ravens referees: John Parry to be lead official - Niners Nation
No instant replay used in game