Napoli named their squad for the trip to Arsenal, including Raul Albiol despite an injury worry.
The Partenopei visit the Emirates on Tuesday evening at 19.45 UK time (18.45 GMT).
Albiol limped off at half-time during yesterday’s 2-0 win at Genoa and underwent treatment today, but is in the squad travelling to London.
Rafa Benitez is expected to start with Gonzalo Higuain and Marek Hamsik, who were rested in Serie A this weekend.
Napoli squad for Arsenal: Rafael, Reina, Colombo, Albiol, Britos, Cannavaro, Fernandez, Armero, Behrami, Dzemaili, Hamsik, Inler, Mesto, Radosevic, Zuniga, Callejon, Mertens, Higuain, Insigne, Pandev, Duvan