Upset Alert! Argentina's 36-match unbeaten streak comes to an end with a 2-1 loss against underdog Saudi Arabia. It is a major blow for Lionel Messi's hopes of winning his first World Cup. Goals by Saleh Alshehri and Salem Aldawsari in a five-minute span in the second half gave the Saudis their greatest win. #worldcup #fifaworldcup #argentina #saudiarabia