0448 GMT November 30, 2022
"It's a situation that this group of players has never been through, it's been a while since we suffered such a tough blow, we didn't expect to start like this," Messi told Argentinian media after the 2-1 defeat in Group C.
Starting his fifth World Cup, Messi had opened the scoring with a 10th minute penalty and Argentina had three goals disallowed for offside in a free-flowing first half.
But in the second half, "in five minutes of mistakes that we made, we went 2-1 down and then it was really tough and we lost organization and started punting the ball," he said in comments broadcast by Todo Noticias.
Messi said his team knew Saudi Arabia, despite being the second-lowest ranked team in the tournament, could hurt them.
"We knew they were a team who would play if we let them...They did not surprise us, we knew they could do that."
Argentina now have to focus on beating Mexico and Poland in their next group games in search of the only major title that has eluded Messi in his otherwise glittering career.
"Obviously we have to win or win now. It's up to us to fix what we did wrong and get back to the basics of who we are," said Messi, whose team had been on a 36-match unbeaten run prior to the shock result at the Lusail Stadium in Qatar.
"We're OK, obviously hurt by the result, very bitter. But people must trust that this team will not let them down and we are going to go for it in the next two games. We've played games of this nature before and we're going to perform well.
"Now's the time to be more united than ever, to show how truly strong we are."
‘Stars were aligned’
EUROSPORT – Saudi Arabia boss Herve Renard said the stars aligned after his team produced a historic win over Argentina.
The Asian side recorded just their fourth-ever World Cup victory – and their second since 1994.
Renard, who previously led Zambia and the Ivory Coast to Africa Cup of Nations glory, was delighted with the victory but does not want to get carried away with Group C fixtures against Poland and Mexico still to come.
"All the stars in the sky were aligned for us, but don't forget Argentina are still a fantastic team," Renard told reporters.
"This is football, sometimes totally crazy things can happen.
"(We can) just have a good celebration during 20 minutes and that's all, there are still two more games.”
He added: "Sometimes the opposition does not have the best motivation, it's normal, it also happened to us when playing lower teams.
"Some people don't understand but you can imagine that when you're playing against Saudi Arabia, the motivation is not the same as playing against Brazil."