NBA to retire Bill Russell's No. 6 jersey throughout the league as tribute to the 11-time champion
Bill Russell's No. 6 is being retired across the NBA : NPR
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Bill Russell given Jackie Robinson treatment as NBA retires No 6 jersey, NBA
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NBA to Retire Number 6 in Honor of Bill Russell
John Havlicek, Celtics great with mighty steal, dies at 79, National Sports
Bill Russell given Jackie Robinson treatment as NBA retires No 6 jersey, NBA
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Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers - The New York Times
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Bill Russell's No.6 Jersey Number Retired Throughout the NBA