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List of National Football League retired numbers - Wikipedia
Jude Bellingham: Birmingham retire number 22 shirt in recognition
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In professional sports what does it mean when a number is retired
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Real Madrid is the most successful sports team on the planet. The soccer club has more trophies than any other sports team, including eleven UEFA Champions League trophies. However, the story behind the triumph goes beyond the players and coaches. Generally unnoticed, a management team consisting mostly of outsiders took the team from near bankruptcy to the most valuable sports organization in the world.
The Real Madrid Way
Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers
In professional sports what does it mean when a number is retired
Infographic: Packers' retired numbers
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