Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers
10 Most Successful Jersey Numbers in NBA History
Retired number - Wikipedia
Bill Russell's No. 6 jersey to be retired throughout NBA
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Celtics Legend Bill Russell's No. 6 Jersey to Be Permanently
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Bill Russell's No.6 Jersey Number Retired Throughout the NBA
Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers
Boston's greatest players to don each uniform number: 101
Pittsburgh Pirates - Wikipedia
Why was Boston Garden nearly empty when Bill Russell's number was
