Real Madrid ace Kaka cannot rule out undergoing more surgery after the World Cup.

Kaka insists his groin injury problems are a thing of the past, he is prepared for a clean-up job if Madrid's medical staff recommend it. Any serious surgery would keep him out of action for two months.

"Will I have an operation? At the moment, I do not think about that, as most doctors do not recommend me going through surgery.

"I will think about it after the World Cup because it is something that needs further evaluation," conceded Kaka.