Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday
HALLOWED GROUND: Monument Park, New York Yankees Museum honor greatest players from most legendary team in sports - Sports Collectors Digest
Yankees Plan to Retire Joe Torre's No. 6 - WSJ
Yankees to retire Joe Torre's number
Houston Astros: Manager Dusty Baker is retiring
Source: No decision yet about when Derek Jeter's No. 2 will be retired - Newsday
Volpe becomes 20-20 player as Yankees lose to Tigers
Joe Torre: Yankees honor Hall of Fame skipper by retiring his No. 6 during Stadium ceremony – New York Daily News
New York Yankees retired numbers: Is team too generous? - Sports Illustrated
A 'forever grateful' Joe Torre honored at Stadium as Yankees retire his No. 6 – New York Daily News