Napoli plays host to Bologna on Monday, a team that is destroying everything in Serie A, and has a chance to reopen the fight for the Scudetto.
The "Azure" were "offered" by the current champion Inter, who drew in Parma (2:2) despite having a 2:0 lead at half-time.
The home team had two goals in the first half (defended by Jan Zomer), and Inter took advantage of two of five big chances to take a clear lead.
They scored through Matteo Darmian, and then with a lot of luck Marcus Thuram, and it seemed that the "Nerazuris" had everything they needed to escape the Neapolitans by six points.
In the rest, however, Parma paid for everything - they crowned a much better game with goals from Adrian Bernabeu and Jakob Ondrejka and deserved to remain undefeated.
It could have even been a complete turnaround, but Mateo Pellegrino missed a great chance from seven meters.
Inter has a game in hand and is four points ahead of Napoli.
Unlike their city rivals, Milan pulled out a point after losing 2:0, but that doesn't mean much to them because they are far behind the teams fighting for a place in the Champions League.
Fiorentina took the lead in the City of Fashion after 10 minutes with goals from Malik Chau (own goal) and Moise Ken, and the final 2:2 was tied by Tami Abraham and Luka Jović.
Bonus video:
