Pirates Baseball Retired Numbers
Andrew McCutchen, forever 22: The Pirates revive his 'retired' number - The Athletic
Pittsburgh Pirates, New York Mets players, coaches to all wear No. 21 on Roberto Clemente Day - ESPN
List of Major League Baseball retired numbers - Wikipedia
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Carlos Delgado says MLB should retire Roberto Clemente's No. 21
Pittsburgh Pirates Reportedly Listening to Trade Offers on All-Star Closer - Fastball
The only day MLB players can wear No. 42? Jackie Robinson Day
The best players to wear every jersey number in Pirates history - The Athletic
New York Yankees retired numbers: Is team too generous? - Sports Illustrated
Former Pirates outfielder Travis Snider announces retirement - Bucs Dugout