Inter's seven-game winning streak in all competitions, four in Serie A, was ended on the pitch of the kings of Italian football.
Napoli is the current champion, and has been the leader in the standings since the 8th round after defeating the runner-up at the stadium named after Diego Maradona.
Under Vesuvius, it was 3:1 for Antonio Conte's weakened team in an unusual match that was under the control of the "Nera Rossa" for almost 60 minutes, but despite that, they were forced to chase, not catch up with their opponents' advantage.
In the second half, the Neapolitans knew how to "strike" from transition, and that's how they scored a goal for 2:0 (a great goal by Scott McTominay), and then for 3:1. when Frank Zambo Angisa ran the ball over 30 meters before checking Jan Zomer.
Inter dominated the first half, having four big chances (two from Alessandro Bastoni, one each from Lautaro Martinez and Denzel Dumfries), but seemed to be cut short by a controversial penalty.
Napoli waited, Kevin de Bruyne routinely scored from 11 meters, but was injured while shooting...
It didn't help Inter then. nor the fact that Hakan Çalhanoglu reduced the score to 2:1 from the penalty spot, nor Conte's conflict with Martinez and Dumfries - Napoli played "Conte-style" and knew how to exploit all the weaknesses of Inter's midfield and defense.
The champion took advantage of Milan's draw with Pisa and now has a point more at the top, Inter is down three, as is Roma with a match in hand.
Atalanta, led by our Nikola Krstović, who played until the 58th minute, drew in Cremona - 1:1.
Cremonese took the lead with Jamie Vardy's first goal in Serie A, and the point for the "goddess" was brought by Marco Bressanini.
Bonus video: