As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Paul O'Neill 'honored' to be 23rd Yankee with number retired
Yankees retire Paul O'Neill's No. 21 jersey - NBC Sports
Uncle Mike's Musings: A Yankees Blog and More: Who Belongs in Monument Park?
Paul O'Neill's career celebrated with Monument Park plaque, by MLB.com/blogs
Yankees honor Torre
Paul O'Neill Yankees No. 21 retired
Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday
NY Yankee Paul O'Neill's No. 21 to be retired on Aug. 21
Yankees] 8.21.22 Paul O'Neill's No. 21 enters Monument Park. : r/NYYankees
Why wasn't Monument Park already a Yankees team Hall of Fame? - Pinstripe Alley
1996 Yankees 20th Anniversary Retrospective: Paul O'Neill - Pinstripe Alley
Paul O'Neill and the trade that changed everything - Pinstripe Alley
Yankees honor Columbus native Paul O'Neill