![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](http://espn.go.com/photo/2012/1231/mlb_g_clementer2_300.jpg)
Black and Gold: December 2012
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://img.mlbstatic.com/mlb-images/image/upload/t_16x9/t_w1024/mlb/fthdxr2ag5wczatj6gln)
Pirates, Mets wear 21 on Roberto Clemente Day
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](http://espn.go.com/photo/2012/1231/mlb_a_clementer3_300.jpg)
Black and Gold: December 2012
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://www.beaconjournal.com/gcdn/-mm-/ba0cff6027e40745b1c8b3bc50aa596cd7398871/c=0-200-3824-2351/local/-/media/2020/09/08/Akron/ghows_gallery_ei-OH-200908863-5a659429.jpg)
Indians' Francisco Lindor, Sandy Alomar Jr., MLB happy to celebrate Roberto Clemente Day
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://www.unionprogress.com/wp-content/uploads/2022/12/20221231smClemente01-1024x721.jpg)
50 years after his death, family and friends honor Pirates star and humanitarian Roberto Clemente — 'part of the soul of everybody in the city' - Pittsburgh Union Progress
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://i.ytimg.com/vi/Q2GLhOFaKaI/maxresdefault.jpg)
MLB's best player at each uniform number -- from No. 1 Ozzie Smith to No. 99 Manny Ramirez and every digit in between
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://kubrick.htvapps.com/htv-prod-media.s3.amazonaws.com/images/roberto-clemente-day-pirates-1663293118.jpg?crop=1.00xw:0.953xh;0,0.0468xh&resize=640:*)
Roberto Clemente Day: Pirates and Mets wear 21
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://i.ytimg.com/vi/KhtWgUGbnko/mqdefault.jpg)
50 years after tragic plane crash, Roberto Clemente's incredible legacy only continues to grow
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://www.pittsburghmagazine.com/content/uploads/2022/11/o/c/clementeportraits2.jpg)
Roberto Clemente: A Tribute to the Great One
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://image.isu.pub/141014212054-dcbb09023ce6fe9639e2c40607f3b3f3/jpg/page_1_thumb_large.jpg)
October 15, 2014 by Pittsburgh City Paper - Issuu
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://sportshub.cbsistatic.com/i/r/2019/01/30/0c94f87a-ceff-4a97-b63a-5df9734bb1b8/thumbnail/1200x675/dd6102b20ade428b085d6fa546785298/numberscover.png)
MLB's best player at each uniform number -- from No. 1 Ozzie Smith to No. 99 Manny Ramirez and every digit in between
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://cdn.slidesharecdn.com/ss_thumbnails/varsitytimes-volume62021-210505074846-thumbnail.jpg?width=2048&height=1162&fit=bounds)
2013 Oldtime Baseball Game Program
![It's going to be unbelievable': Pirates psyched to honor Roberto Clemente by donning No. 21 next week](https://a.espncdn.com/photo/2020/0910/r743186_2_1296x729_16-9.jpg)
Pittsburgh Pirates, New York Mets players, coaches to all wear No. 21 on Roberto Clemente Day - ESPN