The biggest upset of the #WorldCup so far came from Saudi Arabia, who stunned Argentina.

Argentina captain Lionel Messi's pursuit of the one major title that has eluded him brought back memories of Cameroon's 1-0 victory over an Argentina team led by Diego Maradona in the 1990 World Cup opener.

Lionel Messi's chase for his first World Cup trophy started with a stunning defeat to Saudi Arabia, which makes things interesting in Group C.  
https://forbesng.com/2022/11/22/saudi-arabia-whoops-argentina-with-a-2-1-win-in-the-just-started-worldcup-got-lionel-messi-upset/