Some MLB Players Wearing #21, All Wearing 21 Patches Today for
Dodgers will retire Fernando Valenzuela's number 34 at Dodger
The Yankees Retire Paul O'Neill's Number 21 - The New York Times
Rich tradition of retired numbers part of game's legacy
Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers
Dodgers retired numbers: Other players to wear uniforms before
Barry Bonds to have No. 25 retired by the Giants
Tennessee Titans to retire Steve McNair's jersey
Mets to retire numbers for Doc Gooden and Darryl Strawberry – NBC
All-Time Brooklyn & Los Angeles Dodgers Retired Numbers
Yankees retired numbers
History of retired numbers dates back to Lou Gehrig Day