What If … Roberto Clemente had played 3 more seasons with the Pirates? - The Athletic
REMEMBERING ROBERTO; 50 YEARS LATER - Your Sports Network
Roberto Clemente records 3,000th hit in final regular-season at-bat
September 30, 1972: Roberto Clemente collects 3,000th career hit in final at-bat – Society for American Baseball Research
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50 years ago: Roberto Clemente's 3,000th hit
Roberto Clemente, Pittsburgh's Hero
The Best Damn Player in the World Series': Roberto Clemente, the World Series, and the Making of a Career – Society for American Baseball Research
Pittsburgh Pirates each don No. 21 to honor Roberto Clemente - ESPN
Puerto Rico Government prepares party for the 50th anniversary of Roberto Clemente's 3000th hit - AS USA
Roberto Clemente records 3,000th hit in final regular-season at-bat
Puerto Rico Government prepares party for the 50th anniversary of Roberto Clemente's 3000th hit - AS USA
Pittsburgh Pirates, New York Mets players, coaches to all wear No. 21 on Roberto Clemente Day - ESPN