Ríos, Hernández to wear uniform No. 21 on Roberto Clemente Day

The Pirates to wear 21 tomorrow (September 15) in honor of Clemente

Pirates to once again wear No. 21 for Roberto Clemente Day

MLB honors Roberto Clemente in 21st annual event

2021 Roberto Clemente Day Through Photos

MLB honors Roberto Clemente in 21st annual event

Pittsburgh Pirates, New York Mets players, coaches to all wear No. 21 on Roberto Clemente Day - ESPN

Pirates to once again wear No. 21 for Roberto Clemente Day

Pirates to wear No. 21 on Sept. 9 to honor Roberto Clemente – The Denver Post

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A Look at MLB's 2021 Roberto Clemente Day Uniforms

Roberto Clemente Day: Pirates and Mets wear 21

All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of Roberto Clemente – SportsLogos.Net News