New jersey numbers for players and other rule changes for 2021 - Hogs Haven
NFL owners approve several rules changes for 2021 season
Uniforms that should return in 2022 as NFL approves alternate helmets – The Swing of Things
NFL approves rule change on jersey number, nixes overtime shifts
NFL Jersey Numbers NFL Football Operations
The Chiefs proposed a new rule to reduce restrictions on jersey numbers - Niners Nation
Jersey Numbers & More Approved 2021 NFL Rule Changes & Bylaws
Premier League change rule specifically to allow Cristiano Ronaldo the Man Utd No7 shirt - Daily Star
NFL replay rules could reportedly change dramatically in 2021
NFL owners approve replay change, single-digit jersey number rule
NFL 2021 season: What's happening with the league's business
NFL Passes Multiple Rule Changes, Including Relaxing of Jersey Number Restrictions - Sports Illustrated Minnesota Vikings News, Analysis and More