4-3-3 is here to stay it seems.

"We, as strikers, favour that line-up," said Lionel Messi. "In the first half against Bosnia I was often on my own and so was Kun Aguero."

Argentina make two changes to the side which started against Bosnia as Fernando Gago and Gonzalo Higuain come in.

Argentina: Romero, Garay, Zabaleta, Gago, Di Maria, Higuain, Messi, Mascherano, Rojo, F. Fernandez, Aguero

Fans of Lionel Messi will be pleased to know that Argentina will adopt his preferred formation after the striker complained about their system in the 2-1 win over Bosnia-Hercegovina.

Alejandro Sabella's side used five defenders in the victory and Messi said the approach made them "suffer a bit".

"I was not hurt by Leo's comment and he has said that before," said Sabella.

"We can all make mistakes. We will start with a 4-3-3 formation and we will take it from there."

Image source, Reuters

It's raining goals in Brazil.

We've had a downpour of 77 netbusters so far in just over a week as the shackles have been well and truly shaken off.

Image source, Reuters

Thomas Muller, Karim Benzema, Robin van Persie, Arjen Robben and, er, Enner Valencia lead the way in the hunt for the Golden Boot with three goals each but this afternoon the main man himself is in town.

Image source, Epa

Lionel Messi ended an eight-year wait for a World Cup goal against Bosnia-Hercegovina last week. Will he fill his boots against Iran?

Argentina are expected to revert to a 4-3-3 formation, with striker Gonzalo Higuain in line to be recalled to the starting line-up.

Fernando Gago is also likely to start, with Maxi Rodriguez and Hugo Campagnaro set to drop to the substitutes' bench.

Javier Mascherano will win his 100th cap, becoming the fourth Argentine to reach the landmark.

Iran could name the same team which drew with Nigeria, with Charlton's Reza Ghoochannejhad their lone striker.