History of Instant Replay
Changes made to NFL replay system - ABC7 Chicago
Staples: College football's leaders should consider all solutions for clock rules changes - The Athletic
Rulebook loophole used by Tom Brady gets closed by NFL owners, plus five other rule changes coming in 2021
American football rules - Wikipedia
NFL Owners Approve Replay Rule Changes, Among Others for 2021 Season
What is replay assist? Rule change helped officials get call right on Austin Hooper TD in Titans vs. Packers
The History of Instant Replay in the NFL, News, Scores, Highlights, Stats, and Rumors
The 5 O'Clock Club: How instant replay is killing the NFL - Hogs Haven
Madden NFL 11 - Playstation 3 : Video Games
Yes, the NFL puts microchips in footballs, but they're not ready for prime time on key calls – yet
NFL Draft 2021: Day 3 Grades for Every Pick, News, Scores, Highlights, Stats, and Rumors
History of Instant Replay
NBA Rule Change: How the League Updated Its Reviews for 2021-22 –
On Further Review, the NFL's Instant Replay is Finally Instant