Yankees to honor Mariano Rivera with a plaque in Monument Park on August 14. : r/baseball
Paul O'Neill's No. 21 journey started at his first MLB game
Paul O'Neill Yankees No. 21 retired
Yankees honor Columbus native Paul O'Neill
Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed
New York Yankees to retire All-Star Paul O'Neill's No. 21 jersey
New York Yankees to retire Paul O'Neill's No. 21
Paul O'Neill discusses number retirement by Yankees
Paul O'Neill's career celebrated with Monument Park plaque, by MLB.com/blogs
8.21.22 Paul O'Neill's No. 21 enters - New York Yankees
New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN
Paul O'Neill 'honored' to be 23rd Yankee with number retired