As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
New York Yankees: Why Is Bernie Williams Often Left Out?
New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN
The Yankees Retire Paul O'Neill's Number 21 - The New York Times
Yankees retire Bernie Williams' No. 51, unveil Monument Park plaque - ABC7 San Francisco
Photo: New York Yankees honor Paul O'Neill with a plaque in Monument Park - NYP20140809102
Yankees set to retire Derek Jeter's No. 2
Yankees set to retire Derek Jeter's No. 2
Ex-Yankee Paul O'Neill Gets Plaque At Monument Park!
Paul O'Neill Day: Who will Yankees honor in Monument Park next?
Yankees fans boo Hal Steinbrenner during Paul O'Neill ceremony