Why are MLB players wearing 21? Tributes around the league for Pirates(00)

Why are MLB players wearing 21? Tributes around the league for Pirates(00)

Image Gallery: The Story Behind MLB Players Wearing Number 21

Why are MLB players wearing 21? Tributes around the league for Pirates Some MLB Players Wearing 21, All Wearing 21 Patches Today for Roberto Yankees Stars Wear No. 21 To Honor Roberto Clemente On His Day Some MLB Players Wearing 21, All Wearing 21 Patches Today for Roberto Some MLB Players Wearing 21, All Wearing 21 Patches Today for Roberto Some MLB Players Wearing 21, All Wearing 21 Patches Today for Roberto