On the Yankees, retired numbers and a solution in search of a problem
Yankees honor Mariano Rivera in pregame ceremony
Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday
The Yankees Retire Paul O'Neill's Number 21 - The New York Times
New York Yankees Retired Numbers - Sports Illustrated
New York Yankees Retired Numbers: A list of legends who have had
Here are the Yankees' 21 retired numbers
Here are the Yankees' 21 retired numbers
Alex Rodriguez Calls Out Yankees For Not Retiring His Number
Yankees Retired Numbers Quiz
Yankees Retired Numbers
New York Yankees, Lostpedia