Coach Mazzarri has his whole squad available for the trip to Udine.
The manager will take advantage by rotating his squad: Mesto and Armero will play wide in midfield, while Zuniga and Maggio will get a chance to rest.
Insigne could start up front with Pandev on the bench, only to swap places in the second half.
Udinese have been inconsistent away from the Friuli this season, but at home they are undefeated in the last 11 matches, and have won the last four.
Napoli have to reply to Juventus to keep the Scudetto dream alive and get to next week's big clash in good shape. Mazzarri struggles to get his team performing well when rotating, but he looks set to do so anyway.
The hosts will be aware that Napoli need to win but at the same time save some energy for their next match, so Udinese may try to set a high tempo and press from the start, trying to ensure their supremacy in midfield. Napoli will go for all three points but may have a cagey approach to the game in order to avoid conceding early chances. Napoli's defence proved to be solid when travelling, but they still have to pass the 'Di Natale test'.
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