The Russian born Andrei Arshavin wears number 21 jersey for Arsenal.
Phillip Lahm, captain of Bayern Munich also wears 21.
David Silva, ace of Manchester City also wears 21.
Brazilian Correia Adriano is number 21 of Barcelona
Besides Andrea Pirlo, David Silva, for many caps for the Portuguese National team and now at Braga...Nuno Gomes and korean soccer player Park ji sung used to but changed to 7
David Silva From Manchester City used to play for Valencia and plays for Spain
christiano ronaldo wears the number 21
Andrea pirlo,david silva
Meow and meower
Dwight Yorke for Manchester United
The number 84 is not a particularly common shirt number. No player who is particularly famous has ever worn it.
Patrick Viera, Cesc Fabregas, Vidic.
Johnny Torres from Wake Forest University.
It is Gary Nevile and and Cafu of Brazil.
Tim Howard for Everton Tiote for Newcastle
Well there is Owen Hargreaves, Cesc Fabregas, and Sergio Ramos!