The Florence club agreed a deal to bring the Germany international striker to the Stadio Artemio Franchi on Monday.

Gomez is expected to undergo a medical and agree personal terms before being unveiled as a Fiorentina player on Thursday.

Montella, who guided the club to fourth in Serie A last season, feels their supporters can afford to have hope of greater success following the deal.

"It's only right that they dream," the ex-Italy international said.

"We know that it's going to be hard, but it's right that the fans dream because if you can't dream, then there's not much left. Certainly only what happens on the field will show whether this side are capable of repeating what we achieved last season, and then we can look further.

"Everybody knows he's a great player and that we're delighted to get him. We hope to impress again, both in terms of results and the way we play. That is what I hope for."

It is anticipated that Gomez will link up with Giuseppe Rossi up front, although there has been speculation that Fiorentina will sign another forward if Stevan Jovetic is sold.

Montella, though, is refusing to be drawn on those rumours.

"We'll have to see," he added.

"You can always improve your squad so I always expect the best and the most, but let's take things one step at a time for now. The first step should be the official announcement of Gomez."