Walter Mazzarri has told Napoli's players to forget their fantastic performance against Juventus last weekend.
The Partenopei won 3-0 thanks to a wonderful hat-trick from in-form striker Edinson Cavani.
Speaking ahead of tomorrow's match against Fiorentina, he said: "My team manages to play like they did against Juventus, only if they are at 120 per cent.
"Tomorrow the men who will make the difference are those most representatives of Napoli like Cavani and Lavezzi who will have to lend a hand off the ball.
"Fiorentina are a much stronger team than their place in the table suggests. They managed to turn around their match against Brescia in the last few minutes.
"The Viola will be motivated and will play a game according to their value. I ask for help from the fans. We must overcome this obstacle together.
"I want the same atmosphere that we saw against Juventus. The roar of the San Paolo was even seen in the first few minutes when the Bianconeri tried to put us in difficulty.
"It's easy to lift yourselves against Milan, Juve and Inter. The atmosphere must be similar against the other teams too.
"Serie A is very balanced. We have to stay focused and be at our best," he concluded.