Yankees can't capitalize on day Derek Jeter passes Honus Wagner on hit list as offense sputters vs. Indians, 3-0 – New York Daily News
Defector] The Yankees Are Retiring Paul O'Neill's Number In Monument Park, Which Is Different From Giving Him A Plaque In Monument Park, Which They Already Did, And Also Different From Giving Him
Paul O'Neill Baseball Stats by Baseball Almanac
Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday
Bob Sheppard, Mellifluous Voice of Yankees, Dies at 99 - The New York Times
Yankees unveil plaque for Paul O'Neill during Stadium ceremony as 'The Warrior' heads to Monument Park – New York Daily News
September 21, 2008: The final game at Yankee Stadium – Society for American Baseball Research
Baltimore Orioles Overlook Mike Mussina's Excellence By Issuing Adley Rutschman No. 35
Yankees Retire Paul O'Neill's Jersey Number 21 - The Radicards® Blog
Paul O'Neill Day: Who will Yankees honor in Monument Park next?
New York Yankees: 5 numbers that need to be un-retired
Yankees unveil plaque for Paul O'Neill during Stadium ceremony as 'The Warrior' heads to Monument Park – New York Daily News