Keirrison says he sought the advice of AC Milan striker Pato before deciding to join the Viola.
"I spoke with Pato who told me how wonderful the Italian League is and it makes me happy to be compared with Evair and Inzaghi, but I want to make you see that I am Keirrison and that I am different from everyone else," he said.
"As a child I dreamt of understanding Romario's secrets.
"I am happy. I am ready. I was training with Benfica until last Saturday. If they want, I can play quickly."