NFL expands replay system to include more reviewable plays
5 pivotal officiating blunders that changed the outcome of games - The Daily Universe
NFL will partner with Hawk-Eye to enhance instant replay capabilities and shorten delays
Replay review in gridiron football - Wikipedia
NFL Replay Rules Remain Problem For Officials
Baseball instant replay: New system, new strategies – The Mercury News
Hurley: NFL Trying To Fix Instant Replay Problem By Not Addressing That Problem At All - CBS Boston
What stood out in Falcons' NFC South clash with Carolina Panthers
2020-21 OVC Football Honors Highlight Unprecedented Spring Season - Ohio Valley Conference
Better Officiating, Not New York, Key to NFL Getting Instant Replays Right, News, Scores, Highlights, Stats, and Rumors
How the Dez Bryant no-catch changed the NFL forever - ESPN
NFL Approves Expanded Authority for Replay Officials Ahead of 2021 Season, News, Scores, Highlights, Stats, and Rumors