NFL jersey number restrictions could change for running backs, receivers, tight ends, linebackers, defensive backs
NFL owners pass rule expanding eligible jersey numbers for certain positions
NFL likely to pass rule allowing more single-digit jersey numbers
Can NFL players wear any number? - AS USA
Ranking the New NFL Uniforms for 2023 - October 3, 2023
NFL jersey number rules, explained: Why these players changed numbers for 2021 season
How do NFL players pick their jersey number? - Quora
NFL players can wear No. 0 under new rule change – NBC Sports Philadelphia
Can NFL players wear any number? - AS USA
Jets' Mekhi Becton has a new number in mind if the NFL changes its jersey rules
NFL Football Operations on X: .@NFL owners approved a rule change proposed by the @Chiefs expanding jersey number options for certain positions. Check out the full list of 2021 rule changes
NFL jersey numbers: Owners approve rule change for 2021 - Sports Illustrated