Amauri is excited about the arrival of Diego at Juventus.
He said: "It's something which I am very happy about aside from the question of nationality.
"Diego is a great player and he will help us make a further jump in class. The lad has that winning spirit and a lot of class."
The centre-forward added: "It's true. We often hear from each other. Diego also called me before signing with Juve to ask me for many details about the club, the team and the city.
"From the first moment I arrived here it was as if I found myself at home and I tried to tell Diego that this is the ideal place to give consistency to your own footballing dreams."