"Aguero visited Dr Cugat last Thursday and they decided yesterday that the surgery in his meniscus was the best option".
He felt severe discomfort and claimed he "couldn't run" after a 23-minute substitute appearance in the Champions League against Liverpool three days later.
Argentina's first match of the tournament is against Iceland on June 16.
The video shows the players celebrating with Sergio Aguero at the forefront and then it shoots to various fans from all around the world, both young and old, singing a tune which will likely be stuck in your head for the rest of the day.
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'We have scored great goals, played fantastic football and learned together under Pep, ' added the Argentina striker, who missed Saturday's victory for Pep Guardiola's side at Tottenham with a knee injury.
"Fully motivated to get back soon to the field".
The World Cup in Russian Federation starts in two months.
But with just five league matches remaining and the title already wrapped up, City can afford to be cautious with Aguero ahead of this summer's World Cup.
Aguero has not started a game for City since the 1-0 win against Chelsea on March 4.