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

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

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

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

Pittsburgh Pirates to wear No. 21 on Sept. 9 to honor Roberto Clemente

Pirates, Mets wear 21 on Roberto Clemente Day

A Look at MLB's 2021 Roberto Clemente Day Uniforms

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

Pirates will honour Roberto Clemente by wearing his No. 21 on Clemente Day - Article - Bardown