Messi should have drawn the champions level midway soon after but his telegraphed penalty was easily saved by Mostafa Shobeir, meaning the World Cup's all-time leading goalscorer has now missed four of his eight spot-kicks at the finals.
It looked like it was going to be an incredibly costly miss when Mostafa Zico finished off another brilliant Egyptian counter-attack, having earlier had a goal disallowed for a foul on Lisandro Martinez in the build-up.
However, Messi wasn't done - not by a long shot - and he crossed for Cristian Romero to halve Argentina's deficit before thumping home an equaliser with just seven minutes remaining.
Remarkably, Egypt didn't even make it to extra-time, as Enzo Fernandez found the energy to get forward to win the game for the Albiceleste by heading home a stunning cross from wide on the left wing from Lautaro Martinez.
Below, GOAL ranks all of the Argentina players on show in Atalanta...






