An Olympian's oral history : Monte Nitzkowski, 1952 Olympic Games, swimming; 1972, 1980, 1984 Olympic Games, head coach, water polo. - Olympic Oral History Collection - LA84 Digital Library
New NFL jersey numbers, explained: What to know about league's rule change for 2021
NFL Relaxes Restrictions on Jersey Numbers - The New York Times
Why are player to player fights so common at hockey games? - Quora
NFL jersey numbers: Odell Beckham Jr., Stefon Diggs among 20 big names who could make switch under new rule
10 unwritten rules for not screwing up your NFL jersey number
The 10 Most Confusing Things About Football to an Outsider
NFL rule proposal would allow more players to wear single-digit numbers like in college football
The ESPN Daily podcast -- How to listen, episode guide and more - ESPN
Why Honor Matters by Tamler Sommers