The result is one of the biggest upsets in World Cup history especially considering the fact that Saudi Arabia had to come from behind to earn the priceless victory.
South America champions Argentina came into the game as the overwhelming favourites backed by a 36-game unbeaten run.
The Albiceleste took the lead at the Lusail Iconic Stadium thanks to a 10th minute penalty from Lionel Messi.
Argentina had three goals ruled out for offside before the conclusion of a dominant first half but Herve Renard's men rallied back after the break for a stunning turnaround.
First Al Hilal forward Saleh Al Shehri equalised three minutes after the break and Salem Al Dawsari, also from Hilal, completed the famous comeback with a wonderful curler past Emiliano Martinez in the 53rd minute.
Saudi Arabia from then on weathered the storm as Argentina piled on the pressure but Messi and co. failed to find an equaliser.
Argentina will look to bounce back against Poland and Mexico in their next games while Saudi Arabia will head into the upcoming fixtures with confidence from this shocking win.
