Houston Astros retired numbers

Mets retire Willie Mays' number in Old-Timers' Day surprise

The Houston Astros have retired 9 numbers of former players

Every MLB team's retired numbers

Houston Astros - Wikipedia

For Many Latino Players, Roberto Clemente's Number Is Off Limits, Too - The New York Times

Rich tradition of retired numbers part of game's legacy

The Yankees Retire Paul O'Neill's Number 21 - The New York Times

New York Jets Legends 14x22 Retired Numbers Felt Banner NFL Joe Namath Klecko - Cardboard Memories

Mets to Retire Doc Gooden and Darryl Strawberry's Numbers

Every MLB team's retired numbers

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