NFL approves jersey number expansion, other 2021 rule changes
NFL rule changes for 2021; jersey number expansion
NFL rule changes you should know as the 2023 season kicks off - ESPN
Jets' Mekhi Becton has a new number in mind if the NFL changes its jersey rules
NFL jersey number restrictions may change after team proposal
NFL rumors 2021: Proposed rule allowing more players to wear single digits 'likely to pass' (report)
NFL: Complete list of rule changes for 2023 season
NFL Approves Proposal for Expanded Jersey Number Options
Girls lacrosse changes from halves to 12-minute quarters in high school
Jersey Numbers & More Approved 2021 NFL Rule Changes & Bylaws
Kansas City Chiefs' proposed jersey number rule approved by NFL owners