The Era of NFL Wide Receivers Wearing Jersey Numbers in the 80s Is Officially Dead - The Ringer
SportingCharts on Twitter: "Ever wondered how the #NFL jersey numbering system works? Here is a great visual: C/o @Reddit http://t.co/G0MO6ysIEH" / Twitter
Ask Farmer: What do the stars under the 'C' of the captain's football jersey mean? - Los Angeles Times
Is there a rule in the NFL that prevents a player from having a three digit jersey number? - Quora
NFL Relaxes Restrictions on Jersey Numbers - The New York Times
NFL jersey numbers: Here's a running list of players who have decided to make a switch beginning in 2021 - CBSSports.com
Tom Brady slams NFL's jersey number rule: 'Dumb'
Aaron Rodgers rules New York: his Jets jersey tops NFL sales charts | Marca
What's the best jersey number at each position? | theScore.com