Demilio: Roberto Clemente Day Serves as Another Reminder to Retire
For Many Latino Players, Roberto Clemente's Number Is Off Limits, Too - The New York Times
MLB honors Roberto Clemente in 21st annual event
Baseball should retire Roberto Clemente's No. 21 - Black and Gold
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Carlos Delgado says MLB should retire Roberto Clemente's No. 21
Derek Shelton Archives Pittsburgh Baseball Now
MLB honors Roberto Clemente during Hispanic Heritage Month
AlaNNa Rizzo on Twitter: Roberto Clemente Day! A time to honor an unbelievably selfless man who paid the ultimate price trying to help those in need. Do something for someone else today.
Roberto Clemente's No. 21 is 'retired in our hearts' but not on most MLB rosters - The Athletic
Yard Goats to Retire Hall of Famer Roberto Clemente #21 at Dunkin' Donuts Park
Pirates walk off on Roberto Clemente Day as push to retire his No. 21 continues
TSN Archives: Quick Enshrinement Disservice to Roberto (Jan. 20, 1973, issue)
Carlos Delgado says MLB should retire Roberto Clemente's No. 21
Retire 21 (@RetireTwentyOne) / X