The Brazilian has been benched for the past four games and is inside the final 12 months of his current deal.
"But being first in the standings does make me happy. Yes, happy.
"We have everything to win the Scudetto. I knew from the first day of training, I realized there was a new atmosphere.
"My future? I repeat for the last time: I have no intention of leaving Milan. Indeed, I will tell you more: winning with the Rossoneri will give me the urge to chase the dream of my life: playing in the World Cup of 2014 in Brazil.
"Remove my name from all the stories of the soccer market. I'm happy at Milan."