Real Madrid have confirmed that Brazilian ace Kaka will be sidelined for at least three months after undergoing surgery on an injury to his left knee.
The 28-year-old forward struggled for fitness at the World Cup finals earlier this summer and reported a problem during training with Real on Wednesday.
An initial club statement confirmed: "After arriving at pre-season camp in Los Angeles and while undergoing the pertinent medical prior to training with the team, Kaka mentioned discomfort in his left knee.
"Upon further review and after several complementary tests, it is suspected that there may be an injury to the meniscus, which could require arthroscopic surgery."
An update later on in the day added: "The operation performed on the left knee of Kaka by Dr Marc Martens at Antwerp's AZ Monica Hospital was a success.
"The arthroscopic surgery confirmed an injury to the left meniscus with minimal inflammation of the cartilage. The player is expected to miss three to four months."
Meanwhile, Real's new head coach Jose Mourinho added: "Kaka is loved by all his team-mates and he is an excellent player, but we want him to be 100 per cent so that he is happy.
"It's no big deal if we have to lose him for a while. We have other players and that is that. He is one of the best players in the world."