Living out the legacy: Curve retire No. 21 as reminder of Clemente's greatness
Puerto Rican players pushing for MLB to retire Clemente's number
Dunlap: Clemente's Number Doesn't Need To Be Retired - CBS Pittsburgh
Retire 21: Supporters Seek To Honor Baseball Legacy Of Roberto Clemente
Honor a Legacy, Not a Number - The New York Times
For Many Latino Players, Roberto Clemente's Number Is Off Limits, Too - The New York Times
MLB gets it right with Roberto Clemente No. 21 jersey policy
Celebrating Roberto Clemente day : r/baseball
ROBERTO CLEMENTE RETIRED JERSEY NUMBER 21 PATCH - PUERTO RICO FLAG EDITION
Altoona Curve to retire No. 21 in honor of Roberto Clemente
Roberto Clemente remains Latino legend 50 years after death
Altoona Curve to officially retire Roberto Clemente's No. 21 during ceremony Friday
Carlos Delgado says MLB should retire Roberto Clemente's No. 21
Outside The Confines: Everyone wore 21 - Bleed Cubbie Blue