Italy great Gianfranco Zola is reluctant to offer a tip for Sunday's clash between Napoli and AC Milan.

Zola feels Napoli star Khvicha Kvaratskhelia and AC Milan's Rafael Leao could be decisive.

“They will undoubtedly tip the balance with their bursts, the only ones capable of generating that flash to change the game," said Zola.

“I find them very similar, with the difference that Rafa is better in the open pitch and the Georgian instead knows how to do well even in narrow straits. A trident with both would be a dream."

Asked if Napoli and Milan are title contenders, Zola added: “Absolutely yes, I include them among the four big candidates together with Inter and Juventus, while Roma and Lazio are one step behind."