The Giallorossi have had a poor start to the season while the Biancocelesti are at the top of Serie A, alongside Inter and Udinese.
“Lazio? I think Napoli would have more of a chance of winning it,” Spalletti told Il Corriere Dello Sport.
“We knew Lazio would do well and there is a winning environment there which gives the players strength but to be honest even Udinese have a stronger attacking line up than them.
“They are reaping the benefits from their good ways of working. Zarate? He is an interesting player who has confidence in front of goal. They have a good group of players but I don’t think they will go all the way.”