The first-team squad was in training on Friday morning while some members of the team were on international duty.
The league will resume on 30 March when Napoli host Atalanta in Serie A Week 30 at the Stadio Maradona.
Activations and strength work in the gym were the first item on the agenda.
The players then moved out on to pitch one where they took part in technical drills and played out a small-sided match.
Victor Osimhen and Matteo Politano trained individually on the pitch.