Roberto Clemente - Wikipedia
Pittsburgh Pirates to wear No. 21 on Roberto Clemente Day
LEADING OFF: Clemente Day in majors; Urías tries for 18
Roberto Clemente Day: MLB expands list of who can wear No. 21 to Pirates, Puerto Rican players, award nominees
21 things you should know on Roberto Clemente Day
MLB celebrates Roberto Clemente Day, ceremony at Citi Field
Votto named Reds' Roberto Clemente Award nominee — Canadian Baseball Network
Pirates, Mets wear 21 on Roberto Clemente Day
MLB celebrates Roberto Clemente Day, ceremony at Citi Field
Some MLB Players Wearing #21, All Wearing 21 Patches Today for Roberto Clemente Day – SportsLogos.Net News
Carlos Delgado says MLB should retire Roberto Clemente's No. 21
Roberto Clemente: Remembering the Pirates Hall of Famer 50 years after his death, Trending
Today Is Roberto Clemente Day