Appreciating the retired single-digit numbers of the New York Yankees
Yankees to retire Paul O'Neill's No. 21: See the complete list of retired numbers
Yankees to retire Derek Jeter's No. 2 on May 14 – New York Daily News
Jorge Posada has his No. 20 retired by the Yankees - NBC Sports
Yankees to dedicate Mariano Rivera's Monument Park plaque – The Denver Post
Jorge Posada, Retired Number
Derek Jeter back as Yankees honor '98 team at Old-Timers' Day - ESPN
Andy Pettitte, Jorge Posada, Bernie Williams to have numbers retired by Yankees
Mailbag: Retired Numbers, Hall of Fame, Lyerly - River Avenue Blues
Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed
Yankees celebrate Derek Jeter amid split with Astros - The Boston Globe
New York Yankees ceremony addiction is getting out of hand
Here are the Yankees' 21 retired numbers Who belongs and who doesn't? Andy Pettitte, Jorge Posada, Bernie Williams, more
Pettitte, Williams, Posada honored - ABC7 Chicago
Jeter returns as Yankees honor 1998 team at Old-Timers' Day, Boone booed by some – NewsNation