The 21-year-old Uruguayan completed his transfer this week.
"I was eager to start training with the squad and curious to meet a new city and new challenge, but it all went well," he told the official Viola website.
"Our objectives are big and this is a dream come true, as I want to grow as a player here. I am an attacking midfielder who likes to play close to the box. My favourite player is Zinedine Zidane.
"I have Italian origins and hope to soon register an Italian passport, even if I don't speak the language well yet.
"I already spoke with Marcelo Larrondo and Mati Fernandez, who helped me feel at home. I can already tell the intensity in training is different and you work more on tactics.
"Alvaro Recoba told me about Italian football and said Florence is a beautiful city. From what I've seen so far, it really is a place where you can live well."