Three goals were scored in Medellin. All were penalties. Two came courtesy of Argentinian feet, consequently sending Walter Perazzo's team into the quarter-finals and Egypt home.
Erik Lamela's spot-kicks, either side of the interval, had the South Americans at a two-goal cushion. It was not plain sailing for them thereafter, however, as Mohamed Salah halved the deficit from 12 yards before . Ultimately, though, Argentina held on to book a quarter-final against Portugal, conquerors of Guatemala.
The game flowed from end to end in the first 20 minutes, before Lamela sent a free-kick, which he won himself, just over the crossbar. The No10's inviting corner almost provided the opener on 26 minutes, but the unmarked Facundo Ferreyra's headed came back off the post.
Egypt's Mohamed El Neny, from the edge of the box, unleashed a shot which Esteban Andrada did well to hold on 34 minutes, before Argentina broke the deadlock. Carlos Luque went over in the penalty area, and Lamela's firm, low strike made the bottom corner of the net, despite Ahmed Elshenawi getting a firm hand to it.
After a slow start to the second half, Luque and Lamela combined in exact fashion to put Argentina 2-0 up. The former won the penalty; the latter dispatched it.
Egypt appeared done, but on 70 minutes they got one back. Adrian Martinez felled Saled Gomaa in the penalty area, and Salah sent Andrada to wrong way from 12 yards.
Andrada pulled off a superb save to deny a powerful Mohamed Hamdy headed on 80 minutes, before substitute Juan Iturbe broke into the box put fired wide.
The last chance of the game fell to Egypt, and how they will rue missing it. Andrada hesitated as a long ball entered his box and took a high bounce, and Ahmed Hegazi headed the ball up and over the Argentina keeper. It appeared headed over the line, but Leonel Galeano's outstretched leg hooked the ball just wide of the post and out for a corner, which came to nothing.
The No6 had denied Egypt extra time. Argentina will now head to Cartagena.