Paul O'Neill days until Opening Day 2020 : r/NYYankees

Paul O'Neill's No. 21 to be retired by Yankees

New York Yankees - Wikipedia

Paul O'Neill on No. 21 retirement Yankees

Yankees finally show some fire, win on Paul O'Neill Day

During the Yankees' 4 World Series championships from 1996 to 2000, the player with the greatest WAR on the team was not a member of the Core Four, but actually Bernie Williams.

Paul O'Neill's No. 21 to be retired by Yankees

New York Yankees to retire Paul O'Neill's jersey number during 2022 season - Sports Illustrated NY Yankees News, Analysis and More

Yankee Stadium (1923) - Wikipedia

Yankees finally show some fire, win on Paul O'Neill Day