Pirates to wear No. 21 on jerseys for Roberto Clemente Day
Ríos, Hernández to wear uniform No. 21 on Roberto Clemente Day, by Rowan Kavner
Pittsburgh Pirates Celebrate Roberto Clemente Day By Wearing His Number
For the 'Great One'; Pirates, MLB honor Roberto Clemente
Pirates will wear Roberto Clemente No. 21
Puerto Rican players follow Pirates' push to wear No. 21, celebrate Roberto Clemente
MLB's Pirates will honor Roberto Clemente by wearing his number
Pittsburgh Pirates Celebrate Roberto Clemente Day By Wearing His Number
Pittsburgh Pirates to honor Roberto Clemente in perfect way
MLB allows Puerto Rican players to wear No. 21 on Roberto Clemente Day - ESPN