Bill Russell's No. 6 will be permanently retired across league, NBA says
NBA retiring Bill Russell's No. 6 league-wide - CBS Boston
NBA to retire No. 6 league-wide in honor of legend Bill Russell
NBA unveils No. 6 patch to honor Bill Russell across league
Bill Russell is third athlete to have number retired league-wide
NBA retires Russell's No. 6 jersey permanently leaguewide
NBA to retire Bill Russell's No. 6 league-wide
NBA To Retire Bill Russell's No. 6 League-Wide - Hoops Wire
NBA retires Russell's No. 6 jersey permanently leaguewide
Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers - The New York Times