Pirates to wear No. 21 on Sept. 9 to honor Roberto Clemente
MLB's Pirates To Honor Roberto Clemente By Wearing His Number
Roberto Clemente's legacy celebrated in N.Y., Puerto Rico
Tonight was a monumental night:' Pirates, Josh Bell honor Clemente family during Roberto's day
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Pirates would again like to wear No. 21 in 2021
For the 'Great One'; Pirates, MLB honor Roberto Clemente
Pittsburgh Pirates, New York Mets players, coaches to all wear No. 21 on Roberto Clemente Day - ESPN
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Roberto Clemente's #21 To Be Worn By All Pittsburgh Pirates For Clemente Day
50 Years Later, the Pirates' Lineup of Color Still Resonates - The New York Times