2021 N.F.L. Rule Changes: A Viewer's Guide - The New York Times
Adam Schefter on X: New approved rules from today, including players now being allowed to wear No. 0. / X
NFL jersey number restrictions could change for running backs, receivers, tight ends, linebackers, defensive backs
NFL meetings: Players can wear 0, roughing the passer not reviewable
NFL Rules Players Must Follow
Players Can Now Wear No. 0 as Part of NFL Rule Changes
NFL practice squads, explained: How it works, rules, eligibility, more - Pats Pulpit
Rule Changes That Changed Everything
NFL owners approve proposal to allow players to wear No. 0
Full list of NFL players switching to No. 0 jersey in 2023: D'Andre Swift, Brian Burns headline group
Why NFL players were drawn to jersey No. 0 after its return - ESPN
Why NFL players were drawn to jersey No. 0 after its return - ESPN