NFL's instant replay officials have new powers, but owners weren't interested in other major rules changes - The Boston Globe
Yes, the NFL puts microchips in footballs, but they're not ready for prime time on key calls – yet
Rule change to expand role of replay official expected to pass for 2021 season, per report
New replay rule makes for a smoother game – Football Zebras
Rule change to expand role of replay official expected to pass for 2021 season, per report
NFL rule changes: Modified instant replay, more positions allowed to wear single-digit jerseys - The Washington Post
How NFL rule changes for 2021 will impact the game - Fewer low blocks, expanded review and balanced holding calls - ESPN
NFL makes major change to instant replay by making called and uncalled pass-interference penalties reviewable
The NFL's 3 changes under the hood of replay that could have mixed results – Football Zebras
XFL Championship Game 2023 LIVE – Game delayed after DC Defenders WR Josh Hammond crashes into sideline photographer
Yes, the NFL puts microchips in footballs, but they're not ready for prime time on key calls – yet
NFL Replay Rules Remain Problem For Officials
NFL Rule Change: Officials Now Able To Replay Failed Fourth Down Attempts
NFL trade deadline: Players who could be on the move from each team