Barcelona confirm Sergio Aguero has been ruled out for 10 weeks after suffering a calf injury
In a statement, Barca say tests on the Argentine forward have confirmed a tendon injury.
Aguero joined the Catalans on a two-year deal when his contract expired at Manchester City, where he had spent the previous ten years of his career.
The Argentina international buy-out clause has been set at 100 million euros.
Aguero won the Copa America this year with Argentina, alongside compatriot and team-mate Lionel Messi, who has confirmed his departure from Barca.
Meanwhile, Aguero has denied reports that he wants to leave Barcelona following Lionel Messi’s exit.
The 33-year-old’s desire to link up with fellow Argentina international Messi at club level was cited as one of the main reasons for his move to Camp Nou, but that dream has been dashed in the wake of the Blaugrana’s failure to re-sign the six-time Ballon d’Or winner.
It has been reported that Aguero reacted angrily to the news and has asked his representatives to review the terms of his contract.
However, the former City star rubbished any notion that he has taken such steps when arriving at Barca’s training ground at the weekend.
“Don’t worry, you have me all year long,” Aguero told reporters.