Paul O'Neill (baseball) - Wikipedia
Yankees to retire Paul O'Neill's No. 21: See the complete list of retired numbers
Yankees to retire RF Paul O'Neill's No. 21 on Aug. 21 - The Athletic
New York Yankees history: Paul O'Neill's number 21 must be retired
Who is former Yankees player Paul O'Neill's wife?
Yankees retiring Paul O'Neill's number
Paul O'Neill Yankees No. 21 retired
Paul O'Neill's No. 21 journey started at his first MLB game
New York Yankees to retire All-Star Paul O'Neill's No. 21 jersey
Yankees announce next player to have his number retired at Yankee Stadium
Should the Yankees retire #21 for Paul O'Neill?