Brahim Diaz and Alexis Saelemaekers scored the other goals for the raging champions, who move up to third. Rafael Leao set the pace with a brilliant brace for AC Milan.
Napoli suffered its third league loss of the year at the hands of Stefano Pioli’s team, whose enormous lead at the top of the standings has been sliced to 16 points after second-place Lazio defeated Monza 2-0 earlier on Sunday.
Milan is 20 points behind Napoli in the standings, but they have won the first three games against them. This month, the two Italian teams will face off in the quarterfinal of the Champions League.