Mariano Rivera's number retired by Yankees - Newsday
Derek Jeter Day: Yankees honour retiring MLB great
Jeter's No. 2 retired by Yanks; Monument Park plaque unveiled, Sports
Grip on Sports: There will come a day when a Yankee player will be wearing No. 139
Retired number - Wikipedia
Yankee Stadium: Monument Park - Retired Numbers - Mickey M…
Yankee Stadium: Monument Park - Retired Numbers - Lou Gehr…
Yankees honor Andy Pettitte by retiring his No. 46
Have the Yankees taken retired numbers too far?, Bronx Pinstripes
Yankees honor Mariano Rivera in pregame ceremony