Roma great Giuseppe Giannini says the arrival of Paulo Dybala is as big a signing as when Gabriel Batistuta joined the club.

The former Juventus striker joins Roma as a free agent and has signed a three-year contract.

Giannini told La Gazzetta dello Sport: "He's like Batistuta in 2000 who led to the Scudetto the following year.

"I admit I thought about it too, because players like this change everything in all respects, on and off the pitch.

"They give strength to the team, improve their teammates, charge the environment and they scare the opponents.

"Obviously having kept (Jose) Mourinho, with him the basic nucleus of the team and then having taken someone like Dybala is something great. One like this really moves a lot."