Roberto Clemente honors pirates star
MLB allows Puerto Rican players to wear No. 21 on Roberto Clemente Day - ESPN
Pirates to once again wear No. 21 for Roberto Clemente Day
A Uni Watch Look at MLB's Roberto Clemente Day
For the 'Great One'; Pirates, MLB honor Roberto Clemente - The San Diego Union-Tribune
For the 'Great One'; Pirates, MLB honor Roberto Clemente
Roberto Clemente Day: Brent Suter celebrates MLB legend, wears No. 21
To Honor Roberto Clemente, MLB Expands List of Who Can Wear No. 21 - Sports - Remezcla
LEADING OFF: Pirates, Puerto Rican MLBers wear Clemente's 21 – KXAN Austin