Yankees to retire Paul O'Neill's No. 21 on Aug. 21
Paul O'Neill's No. 21 to be retired by Yankees
New York Yankees Announce Retirement of Paul O'Neill's Number 21 – Celeb Secrets
Paul O'Neill calls Yankees jersey retirement 'highest honor
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
New York Yankees history: Paul O'Neill's number 21 must be retired
New York Yankees to retire Paul O'Neill's No. 21
Derek Jeter's Paul O'Neill message after Yankees retire his number
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday