New Clip, Major League Baseball, New York Yankees, baseball
The Yankees Retire Paul O'Neill's Number 21 - The New York Times
Yankees Retired Numbers - Who Are The 22 Yankees Who Wore Them
All-time best Yankees by jersey number (1-33)
Yankees retired numbers: Paul O'Neill latest to be added to list
A number of nuggets about retired numbers around the Major League
Yankees make major request to MLB due to unique problem
The Yankees have a lot of retired numbers. Other teams should try
Yankees want to stop issuing uniform numbers to managers, coaches
What the Yankees' uniform number crunch could cost MLB's managers
New York Yankees - Wikipedia
The Greedy Pinstripes: The Yankee Stadium Experience - Part One
Yankee Retired Numbers: The All-Time Numerical Lineup of Yanks