AC Milan superstar and World Footballer of the Year Kaka is out injured for 10 days. Milan's poor form in the Serie A continues as they lost against Sampdoria and Kaka's injury will add to the worry.

AC Milan already have Ronaldo, Pippo Inzaghi, Cafu, Serginho and Gourcuff in the injured list. Kaka's injury will be a roadblock to Milan's hopes to enter the champions league next season.

Kaka limped off after just 10 minutes into the match which they lost 1-2. The club's official website reports that he will be out of action for 10 days.

When asked about the injury Kaka said, "My injury came in the first few minutes of the game, I raised my leg. After that the Sampdoria defender was booked. I tried to stay on the pitch, but the muscle hardened, for me it was the first time it happened so I didn't know how to handle it. On the move of the counterattack I felt I couldn't keep playing and I went off. "

Milan's next match is against Torino and Kaka will certainly be missed. Kaka has pledged that he will be back soon and he is working hard to be back to the pitch as soon as possible.

"I feel better, I suffered a muscular problem and now we'll see how much time will be necessary to come back. I'm working to come back as soon as possible by doing physiotherapy, a bit of work in the pool to avoid running and other movements to allow the muscle to rest" he said.

Kaka said that the match against Torino is very important to Milan and they can't waste any opportunities to earn crucial points in the race for the fourth place.