Alex was snapped up on a Bosman.
"I want to thank the fans for the great affection, I want to repay that and I am convinced that together we can take away great satisfaction," Alex has told reporters today.
"Milan are a great club even if this year we are not in the Champions League. I am very happy to have come here.
"Everyone has spoken well of Milan and I have always dreamed of wearing this shirt. Also in Brazil they talk much and well of Milan.
"This season we will put in a lot of effort, whilst the fans will support us. Yesterday [at the preseason launch at Casa Milan] it gave me chills throughout the reception.
"We will work hard to repay all this affection.
"I am sure I can lend an important hand to the team, I will bring to them my experience.
"With work and commitment we will also fight for the Scudetto.
"Are Milan vulnerable from set-pieces? It is not that Milan concede so many goals. Tactically, we are already working on avoiding conceding these goals.
"If we want to win then we cannot concede so many goals."
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