Number 21 Continues to Remain Sacred to the New York Yankees

Ex-Yankees pitcher Tommy John diagnosed with COVID

New York Yankees history: Paul O'Neill's number 21 must be retired

Dom Amore: Bobby Valentine remembers baseball's lost legends, helps launch Jackie Robinson scholarship at Sacred Heart – Hartford Courant

New York Yankees Announce Retirement of Paul O'Neill's Number 21 – Celeb Secrets

The Athletic] The Yankees have asked MLB if they can stop issuing uniform numbers to their manager and coaches because they're running out of numbers that aren't retired : r/baseball

Anthony Rizzo has earned Yankees lovefest that awaits him

Yankees lose to Rays, eliminated from playoffs