Full-Time: Argentina 1-0 Iran
94' - And it's all over! Argentina snatch it at the death as captain Lionel Messi secures the three points for his side!
93' - SUB Argentina: Biglia (ON) for Di Maria (OFF)
91' - GOAL! It's none other than Lionel Messi who scores with a sumptuous from range!
90' - Haghighi fists away a ball played into his 18-yard area. Four minutes added on.
88' - Still the illusive goal evades Argentina, whose final ball has yet to trouble the Iranian goalkeeper.
85' - CHANCE! Ghoochannejad breaks and runs at the Argentine defence, forcing a fine out-stretched save from Romero!
84' - Haghighi with a save on the other end of the field. Resulting corner for Argentina again produces no end product.
83' - Iran win a free-kick on the edge of the box, but the delivery is poor, evading everyone as it flies wide for a goal-kick.
81' - CHANCE! Rojo shoots wide of the left upright!
80' - Argentina's seventh corner again amounts to nothing. Iran break, but the final ball is swept away buy Argentina's defence.
76' - DOUBLE SUB Argentina: Lavezzi and Palacio (ON) for Higuain and Aguero (OFF)
75' SUB Iran: Heidari (ON) for Shojaei (OFF)
74' - CHANCE! Di Maria on the left of the box shoots straight at the Irania goalkeeper Haghighi, who blocks his shot!
71' - Shojaei brings down Di Maria on the edge of the box and goes into the referee's book. Messi's spot kick hits the side-netting.
69' - Rojo with a cleverly-played ball into the box, but it's over everyone and rolls out for a goal-kick. Argentines getting frustrated, with just 20 minutes left to find a goal.
67' - CHANCE! Biggest chance of the game goes to Dejagah, who gets in front of Zabaleta and heads goal-wards, forcing a finger-tip save from Romero!
65' - Iran looking a little more attack-minded in the second half as they win another corner. Dealt with by the South American defence.
63' - CHANCE! Haji Safi's long-range strike is deflected out for a corner! Resulting set-piece bobs around in the Iranian box before being hoofed clear.
60' - Argentine crowd in full voice, urging their team on as the pour forward time and time again, but with no end result.
59' - CHANCE! Messi with his renowned runs straight down the middle, shoots with his left, but it's just wide!
58' - Poor ball into the box after a lengthy Argentine build-up. Sabella might look for a super-sub soon.
55' - Yet another Argentine header from a corner is wayward. The Albicelesti might come to regret these misses a little later...
54' - Iran furious after Zabaleta's strong challenge on Dejagah in the box, but no penalty given.
52' - Nekounam receives the game's first yellow card after a reckless challenge.
51' - CHANCE! Romero makes his first save of the match, denying a Reza header! Best chance for Iran so far.
50' - Argentina dominating the opening stages of the second half. Following a similar pattern of the first, but no break-through yet.
49' - CHANCE! Zabaleta tries curling it in from the left after a lay-off from Messi, but it's wide.
48' - Rojo delivers a dangerous cross from the left, but the Iranian defence remains solid and it is easily dealt with.
46' - Early corner for Argentina in the second period, which Gago takes, but it's headed clear. Mascherano's follow up ball is too strong for gago to retrieve out wide. Goal kick Iran.
45' - The second half is underway!
Half-time: Argentina 0-0 Iran
45' - Late Iran freekick is headed out the box and falls to Haji Safi, who blasts the ball over the Argentine goal. That's the last kick of the half as the referee blows his whistle.
44' - Fernandez now heads over Argentina's third corner of the half. GPS isn't on for the Albicelesti in terms of heading ability today...
43' - Aguero now on the left, but dinks the ball over any blue shirts in the box.
41' - CHANCE! Iran with a corner that Hosseini heads over the bar! Best chance for the Asians in the half.
39' - Patient build-up ends as Rojo's cross is too strong and goes out for yet another Iranian goal-kick. Argentina struggling to put in a quality final ball for the waiting Higuain and Ageuro.
36' - CHANCE! Messi delivers an inch-perfect free-kick, which Garay headers over the top!
32' - CLOSE! Messi's free-kick doesn't dip enough as it flies over the Iranian goal.
31' - Argentina with the majority of the ball, passing it around and searcing for talisman Lionel Messi, who is tripped up just in front of the D. Free-kick to the Barcelona star...
29' - Iran with all ten men behind the ball, as Di Maria over-hits his cross into the box. Iran goal-kick.
26' - Di Maria's strong run into the box wins Argentina a corner, which is headed wide.
24' - Aguero comically removes the corner-flag in frustration after the ball rolls out for a goal-kick. Lucky not to be carded.
23' - CHANCE! Argentina's first corner which Di Maria delivers, and Rojo heads narrowly wide!
21' - SAVE! Haghighi saves a goal-bound Aguero strike, diving to his left!
18' - CHANCE! Di Maria shoots over from just outside the box. Argentina edging closer to finding an opening...
17' - Iran win the game's first corner, yet it's cleared and Argentina counter. Higuain with a poor touch in his box as the attack breaks down.
13' - CHANCE! Gago plays in Higuain, whose first-time shot is well closed-down and saved by Iranian goalkeeper Haghighi! Haghighi needing treatment now.
12' - Iran with more than three passes for the first time in the game, yet a long-ball is overcooked and goes out for an Argentine goal-kick.
10' - Di Maria with silky skills on the left, crosses in but the ball is cleared away. Argentina gather and come straight back at the Iranian defence, only to have Messi's shot blocked.
9' - Argentina still pobing, but no clear-cut chances created in front of goal. Yet.
5' - Iran with just 26% of the ball in the opening stages as Argentina look for an early goal.
4' - Handball by Zabaleta gives Iran a free-kick near the left-hand touchline. Hosseini flicks his header wide of Romero's goal.
2' - Three fouls in quick succession by Iran. Looking to close down the Argentineans early.
1' - And we're underway! Argentina in their traditional light blue and white strip, Iran in red.
Argentina will be looking to consolidate their position at the top of the group following their opening 2-1 victory over Bosnia-Herzegovina, while Iran are hoping for more after their goalless draw with the Nigeria.
The team line-ups have been announced:
Argentina XI: Romero, Garay, Zabaleta, Gago, Di Maria, Higuain, Messi (c), Mascherano, Rojo, F. Fernandez, Aguero
Iran XI: Haghighi, Haji Safi, Hosseini, Sadeghi, Nekounam (c), Shojaei, Timotian, Montarezi, Ghoochannejad, Dejagah, Pooladi