Yankees fans boo Hal Steinbrenner during Paul O'Neill ceremony
Paul O'Neill 'honored' to be 23rd Yankee with number retired
Yankees honor Paul O'Neill with Monument Park plaque
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Yankees announce next player to have his number retired at Yankee Stadium
Yankees to Retire Paul O'Neill's No. 21 in Pregame Ceremony in August – Brooklyn Sports World/NY NJ Sports World
How Paul O'Neill Stacks Up Against the Other Yankees With Retired Numbers
PAULIE GETS HIS DAY - PressReader
NY Yankees retire Paul O'Neill's No. 21
New York Yankees to retire Paul O'Neill's No. 21 on Aug. 21 - The San Diego Union-Tribune
Yankees to retire Paul O'Neill's No. 21 at Yankee Stadium on August 21st - Pinstripe Alley