Napoli coach Walter Mazzarri says the players know the "importance" of tonight's clash with Juventus.
Mazzarri insists Napoli will be up for the test.
He said: “I think that since I arrived, we have realized that at the first mistake we immediately concede a goal, we are trying to change.
“I want to give more balance to the team as in the past, attack well like in the first half against Inter and not allow these sensational counterattacks which characterized the team even before my arrival.
“The top teams must have a balance, be solid, not concede many goals and then feel important and make the plays up front that we know how to make.
“This is my job, thinking game after game, there's no point in talking too much, we start winning matches and conceding few goals, like in the first half against Inter.
“Juventus vs Napoli, you know what it means, the team that won the Scudetto, one of the strongest in Italy, it's a match of importance, very important and we must do it well also to understand certain progress."