2021 NFL rule changes: Expanded jersey numbers among 6 new rules
NFL jersey numbers: Odell Beckham Jr., Stefon Diggs among 20 big names who could make switch under new rule
Patriots assign new veteran numbers, temporary rookie numbers
Detroit Lions jersey numbers: Jamie Collins changes to No. 8, keeping Penei Sewell with No. 58
Calvin Ridley announces he'll be first NFL player to wear newly-approved No. 0 jersey - On3
LA Rams 10 players sporting new jersey numbers in 2021
NFL passes jersey number expansion rule, meaning more single digits are coming - Acme Packing Company
NFL likely to pass rule allowing more single-digit jersey numbers
NFL Owners Approve Proposal To Allow Players To Wear No. 0 – SportsLogos.Net News
NFL moves to 17-game regular season in 2021: What it means for teams, players, revenue and fans - ESPN
NFL Approves Jersey Number Expansion for 2021 (And Giants Are Already Having Fun With It) - Sports Illustrated New York Giants News, Analysis and More
NFL approves expansion of horse-collar rule - NBC Sports