Juve is among a number of clubs reportedly interested in the Italy international, who has managed six goals and three assists in 23 Serie A appearances this season.

There is still deep bitterness among Fiorentina fans for the way in which Roberto Baggio left for Juve in 1990, a transfer that prompted riots in the streets of Florence.

Commisso claimed last July that he would not repeat such a mistake and would not sell Chiesa even for €100million.

However, he appears to have softened his stance somewhat on the future of one of Fiorentina's brightest prospects.

"Chiesa must decide and, if he wants to leave, I won't stand in his way, as long as the amount is right," Commisso told La Gazzetta dello Sport.

"How much is Lautaro Martinez's release clause? 111million euros? I could take off a million for Chiesa... I'm just kidding!

"Chiesa knows what Fiorentina are about, who Rocco is, and what he'll find here in Florence in the future. If he goes elsewhere, then I don't know.

"If he wants to go to Juve, there are no vetoes for certain clubs. However, at the moment I have a splendid relationship with Federico and his father."

Chiesa, the son of former Italy striker Enrico, has made 139 competitive appearances for Fiorentina, scoring 29 goals.