Exchanging Jerseys: A Soccer Tradition Takes Off in the N.F.L. - The New York Times
Why do footballers exchange jerseys at the end of game? Is there any story behind this custom? - Quora
The art of exchanging jerseys in the NFL - The Washington Post
Who Are the Cook Brothers? Brief History of NFL RB Siblings Dalvin Cook and James Cook
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Why do players swap shirts in soccer? Explaining tradition of exchanging sweaty jerseys post-game
NFL jersey swap
Shirt swapping: new to NFL, but long part of soccer's rich tradition, Soccer
NFL jersey swap
The art of exchanging jerseys in the NFL - The Washington Post
Fallen NFL star Antonio Brown strips shirt mid-game, storms off field