![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://img.mlbstatic.com/mlb-images/image/upload/ar_16:9,g_auto,q_auto:good,w_1024,c_fill,f_jpg,dpr_3.0/mlb/tu1emzbtia9vru0yfhhm)
MLB honors Roberto Clemente in 21st annual event
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](http://dev.sabr.org/wp-content/uploads/2012/01/Clemente06-scaled.jpg)
Roberto Clemente – Society for American Baseball Research
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://img.mlbstatic.com/mlb-images/image/private/t_2x1/t_w1536/mlb/dh5kappscxt8noikhrc5.jpg)
Best Pirates players by uniform number
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://img.mlbstatic.com/mlb-images/image/upload/ar_16:9,g_auto,q_auto:good,w_1024,c_fill,f_jpg,dpr_3.0/mlb/lbhm0yzeml1ggsr47hu1)
MLB honors Roberto Clemente in 21st annual event
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://s.hdnux.com/photos/01/27/37/16/22934460/3/rawImage.jpg)
Five Astros wear No. 21 on Roberto Clemente Day
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://media.zenfs.com/en/kansas_city_star_mcclatchy_articles_677/4944695b4aeaca0aedab821908512b3b)
Witt, Velázquez and Massey each homer for KC Royals in victory over Houston Astros
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://img.mlbstatic.com/mlb-images/image/upload/ar_16:9,g_auto,q_auto:good,w_1024,c_fill,f_jpg,dpr_3.0/mlb/mxf34dpybujfp08kjjwv)
Pirates, Mets wear 21 on Roberto Clemente Day
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://h2j7w4j4.stackpathcdn.com/wp-content/uploads/2022/12/arriba-000019.jpg)
I Will Catch the Bleeping Ball': Roberto Clemente's Defensive Skills – Society for American Baseball Research
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://media.nbcbayarea.com/2020/09/as-murphy-0907.jpg?quality=85&strip=all&resize=1200%2C675)
Murphy Hits Homer, Two-Run Single, A's Take 1st From Astros – NBC Bay Area
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://img.mlbstatic.com/mlb-images/image/upload/t_16x9/t_w1024/mlb/uahyxyzcs8qszjrqb8nb)
Salvador Perez earns Royals Roberto Clemente Award nomination
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://upload.wikimedia.org/wikipedia/commons/b/b3/Adrian_Beltre_%2850294917497%29_%28cropped%29.jpg)
Uniform number (Major League Baseball) - Wikipedia
![Houston Astros: 8 players don No. 21 on Roberto Clemente Day](https://nypost.com/wp-content/uploads/sites/2/2021/09/Javier-Baez-and-several-other-ets-players-wore-No.-21-in-honor-of-Roberto-Clemente..jpg?quality=75&strip=all)
Javier Baez uncertain he will be a long-term Met