The Castrol Performance Index has rated the best eleven players in Australia's World Cup history. The ranking system sponsored by Castrol for football all over the world uses mathematical formulas to evaluate player performance in terms of individuals actions in either, scoring, assisting or preventing goals.

Below is Castrol's take on the Socceroos Greatest XI from their World Cup performances including players from as far back as 1974.

Goalkeeper

Jack Reilly (1974)

Defenders

Manfred Schaefer (1974) Peter Wilson (1974) Lucas Neill (2006) Craig Moore (2006)

Midfielders

Scott Chipperfield (2006) Tim Cahill (2006) Vince Grella (2006) Jason Culina (2006)

Forwards

Adrian Alston (1974) Mark Viduka (2006)