Retired numbers in Phillies team history
Philadelphia Phillies all-time roster - Wikipedia
Philadelphia Phillies retired numbers
Every MLB team's retired numbers
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Philadelphia Phillies retired numbers
Mets to Retire Jerry Koosman's Jersey - The New York Times
Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers - The New York Times
Retired Numbers Philadelphia Phillies
Where are they now? Philadelphia Phillies 2008 World Series team
The Cubs should retire several more jersey numbers - Bleed Cubbie Blue