![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://a.espncdn.com/photo/2022/0916/r1062730_1296x729_16-9.jpg)
Major League Baseball marks Roberto Clemente Day with ceremony at Citi Field - ESPN
![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://www.nydailynews.com/wp-content/uploads/migration/2022/09/15/ZRCB3WFSHJGETAOIWNOKACX7LU.jpg?w=620)
Carlos Delgado says MLB should retire Roberto Clemente's No. 21
![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://i.ytimg.com/vi/8vxHe8brEzI/maxresdefault.jpg)
Should Roberto Clemente's #21 Be Universally Retired Across MLB?
![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://s.hdnux.com/photos/01/14/02/44/19933502/6/1200x0.jpg)
A's Vimael Machin 'honored' to wear No. 21 on Roberto Clemente Day
![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://npr.brightspotcdn.com/dims4/default/eaf174f/2147483647/strip/true/crop/5270x2964+0+274/resize/1200x675!/quality/90/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F9f%2F0c%2F4cd6d9d34c0baf4a93e7248f5a55%2Fap22258860658352.jpg)
MLB celebrates Roberto Clemente Day
![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://www.sportsbusinessjournal.com/-/media/Images/Daily/2021/09/14/Clemente-Day.ashx)
Sources: MLB letting more players to wear No. 21 for Clemente Day
![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://a.espncdn.com/photo/2020/0910/r743181_1296x729_16-9.jpg)
Pittsburgh Pirates each don No. 21 to honor Roberto Clemente - ESPN
![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://www.usatoday.com/gcdn/presto/2021/09/15/USAT/9002198e-be43-4f71-8e3c-78bf1e5b204b-Clemente_Day_.JPG)
Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21
![Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21](https://media.13newsnow.com/assets/CCT/images/16a4a965-e07d-4083-81d6-03ddec9c89d9/16a4a965-e07d-4083-81d6-03ddec9c89d9_1920x1080.jpg)
Puerto Rican MLB players can wear number 21 on Clemente Day