Barcelona has received a tough boost ahead of the new season, which begins this weekend.
Last week it became clear that Lionel Messi will leave the club after a full 18 years.
And today "Barca" announced that Messi's compatriot Sergio Aguero will miss the start of the season.
"Tests have shown that the A-team's Sergio Aguero has shown a tendon injury to his right calf.
The player will be away from games for about ten weeks ", Barcelona writes on the association's website.
Agureo signed for Barcelona in May, after spending ten years at Manchester City.