The NFL passes rule that will allow skill players to wear single digits - Niners Nation
NFL jersey number rules, explained: Why these players changed numbers for 2021 season
NFL passes jersey number expansion rule, meaning more single digits are coming - Acme Packing Company
Tom Brady Calls NFL's New Number Rule 'Dumb,' Says It's 'Bad Football'
16 NFL players who could get new jersey numbers after rule change
NFL jersey numbers: Odell Beckham Jr., Stefon Diggs among 20 big names who could make switch under new rule
NFL owners approve several rules changes for 2021 season
B/R Gridiron] The NFL is expected to pass a rule that will relax jersey number restrictions, per @peter_king — QB: 1-19 — WR: 1-49, 80-89 — RB: 1-49, 80-89 — TE: 1-49, 80-89 — DB: 1-49 — LB: 1-59, 90-99 — OL: 50-79 — DL: 50-79, 90-99 : r/nfl
Saints players likely to move to single digit uniforms after NFL loosens up jersey restrictions - Canal Street Chronicles
Do NFL players wear different numbers on their practice jerseys than they do in games? If so, does it mean anything specific? - Quora
NFL owners pass rule expanding eligible jersey numbers for certain positions
Dominant Digits -- The 10 most popular jersey numbers among current NFL players - ESPN
Rank'Em: These 20 Switching To College Number?
NFL Relaxes Restrictions on Jersey Numbers - The New York Times
NFL approves jersey number expansion, other 2021 rule changes