Former Juventus captain Gianluca Vialla has hailed their capture of former Werder Bremen star Diego.

"Diego is a fantastic acquisition. I consider him to be one of the best three players in the world under 25 together with Messi and Cristiano Ronaldo," Vialli told Tuttosport.

"His years in Germany have strengthened him and thanks to him Juventus' attack presents itself as one of the best in the world."

On Juve's squad, the former Chelsea favourite added: "It seems to me that the base is very solid. The directors are building a team in a position to play against anyone in Italy.

"Meanwhile in Europe, if Ibrahimovic were to leave Inter, I don't see an Italian in the fight with the favourites for the Champions League.

"That said, if we are underestimated, we can become unpredictably competitive."