A moment of brilliance from Lionel Messi settled an intense affair between Iran and Argentina, giving the South American side a narrow 1-0 victory.
Messi's stoppage time strike gave the three points to an unconvincing Argentina, who couldn't breach a resolute Iranian wall.
Carlos Queiroz's tactics frustrated Messi, Gonzalo Higuain and Sergio Aguero, along with Argentina's midfield and full-backs, who had issues finishing some decent chances.
Iran also showed some attacking nous in the second half, with their two best chances coming off headers by Ashkan Dejagah and Reza Ghoochannejhad.
Here are five things we learned from today's match.