![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://vault.si.com/.image/ar_1:1%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTY5MTAwOTY0MDk0MjIzNjQ5/roberto-clemente-vaultjpg.jpg)
December 31: ¡Arriba Roberto! - Sports Illustrated Vault
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://s.hdnux.com/photos/01/20/26/41/21063749/4/ratio3x2_700.jpg)
Five Astros wear No. 21 on Roberto Clemente Day
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=10227102662006950)
Roberto Clemente Commemoration Committee Hartford
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://i.ytimg.com/vi/uouSmqpLyXY/maxresdefault.jpg)
Pirates walk off on Roberto Clemente Day as push to retire his No
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://www.bardown.com/polopoly_fs/1.1518415!/fileimage/httpImage/image.jpg_gen/derivatives/landscape_620/roberto-clemente.jpg)
Pirates will honour Roberto Clemente by wearing his No. 21 on
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://passtheword.files.wordpress.com/2008/09/robertoclemente_williemays_hankaaron.jpg)
No. 21 Deserves to be Hailed. But Not Like No. 42
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://i0.wp.com/pittsburghbaseballnow.com/wp-content/uploads/sites/27/2023/09/Misiewicz-scaled.jpg?resize=1000%2C600&ssl=1)
Derek Shelton Archives Pittsburgh Baseball Now
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://9b16f79ca967fd0708d1-2713572fef44aa49ec323e813b06d2d9.ssl.cf2.rackcdn.com/300x_a1-1_cTC/20200902mfbucssports07-2-1599104737.jpg)
It's going to be unbelievable': Pirates psyched to honor Roberto
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://i.ytimg.com/vi/8vxHe8brEzI/mqdefault.jpg)
Should Roberto Clemente's #21 Be Universally Retired Across MLB
![Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21](https://9b16f79ca967fd0708d1-2713572fef44aa49ec323e813b06d2d9.ssl.cf2.rackcdn.com/1140x_a10-7_cTC/MIL-CENTURY-OF-ATHLETES-1599067475.jpg)
It's going to be unbelievable': Pirates psyched to honor Roberto