NFL approves jersey number expansion, other 2021 rule changes

Expanded use of jersey numbers among approved NFL rule changes for 2021 - Pats Pulpit

2021 N.F.L. Rule Changes: A Viewer's Guide - The New York Times

N.F.L. Officially Adds 17th Regular Season Game - The New York Times

NFL 2021 season: What's happening with the league's business

NFL jersey number restrictions could change for running backs, receivers, tight ends, linebackers, defensive backs

NFL Jersey Rule Boosts Rookie Marketing, Could Cost Veterans –

NFL jersey number restrictions could change for running backs, receivers, tight ends, linebackers, defensive backs

New jersey numbers for players and other rule changes for 2021 - Hogs Haven

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

2021 NFL rule changes guide - What to expect from more replay help, jersey number flexibility, more - ESPN

NFL players can wear No. 0 under new rule change – NBC Sports Philadelphia

NFL rule changes: Modified instant replay, more positions allowed to wear single-digit jerseys - The Washington Post

NFL stars excited by zero jersey number rule change

NFL players can now wear No. 0 among rule changes