9. Over-Age Players

The over-age player rule was introduced in 1996. Amongst the first group of over-23s were Diego Simeone, Alexi Lalas, Jorge Campos and Rivaldo.

10. And There Has Been Loads Of Huge Names Since

Ryan Giggs, Ronaldinho, Juan Roman Riquelme and Andrea Pirlo have all benefited from the over-age players rule. Brazil’s soccer superstar Naymar will be playing this year.