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Messi scores winner in injury time
Argentina through to last 16
Game played in Belo Horizonte
Image source, Getty ImagesLovely effort from left-back Marcos Rojo, who whistles a shot wide from 25 yards. It was further away than I first thought actually as Iran coach Carlos Quieroz calls for cool...
Kathleen Luckey:, external This competition is proving that no teams should be dismissed as being there to make up the numbers. Everyone wants to win.
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Into the last 10 minutes and you can't see Argentina finding a goal here. They are really limited.
Jose Mourinho will be taping this Iran performance and filing it under 'favourites.'
It's so slow from Argentina. Very disappointing stuff. But tremendous defending from Iran.
Former Celtic manager Neil Lennon
BBC Radio 5 live
"I don't believe those substitutions. I know they brought on two strikers for two strikers but with 15 minutes to go, I don't think there is any need for the two defensive midfielders."
There are 12 minutes to go against Iran, Argentina have the ball out wide and there's not one man in the box!
Time to throw the dice. Rodrigo Palacio of Inter and PSG forward Ezequiel Lavezzi are on for Argentina as they pack the place with strikers.
Sergio Aguero and Gonzalo Higuain are off. They've not played well.
Angel Di Maria has been the most lively and the most likely for Argentina. He rattles in a low shot which is well held by Alireza Haghighi.
Dennis Ethan:, external Iran presently playing with aplomb and won't be surprised if they nick a victory here. C'mon Argentina though.
Eric White:, external You got to admire Carlos Queiroz and this Iranian team regardless of how this game finishes.
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Image source, ReutersIran were 25/1 to win the game before kick-off, with the draw available at 9s. There are plenty of Argentina fans praying now...
Free-kick for Argentina - Lionel Messi hits the side-netting...
Iran have never got out of the group at the World Cup. Draw (or even win...) today and thy will be right in the mix.
Argentina have less than 20 minutes to end the resistance. They don't look like doing so yet.
BBC Sport's David Ornstein in Belo Horizonte
"The jacket has come off for Carlos Queiroz and who can blame him given then red-hot atmosphere generated by his team's remarkable second-half performance? Iran could easily have been 2-0 up and had a penalty. Argentina appear to be on the ropes."
Former Celtic manager Neil Lennon
BBC Radio 5 live
"They are men inspired at the moment Iran. They are fighting for every ball and winning many of them too."
Gonzalo Higuain has had a stinker for Argentina, who are crying out for Gabriel Batistuta or Hernan Crespo now. Another Angel Di Maria cross goes begging. No movement or desire on display from the laconic number nine...
Former Celtic manager Neil Lennon
BBC Radio 5 live
"It's a fantastic save. A great run across Zabaleta from Dejagah. This game is on a knife-edge. Magnificent theatre. Romero is some keeper though and had a fantastic season with Monaco."
Image source, Getty ImagesThis is extraordinary! It's all Iran now as Fulham man Ashkan Dejagah is only denied the opener by a brilliant save from Sergio Romero, his header was flying in until the Monaco man got a touch to it.
We could be on for the mother of all World Cup Cupsets...
Image source, ReutersIran can sense a stonker of an upset. Ehsan Hajsafi shoots from range, and it is deflected just wide before the corner causes more chaos! Argentina look a mess at the back.
The Argentine fans remain behind their side. There's a fresh wave of song moving through the stadium as Argentina labour against the red wall of defence.