Simone Zaza responded with a brace in a 2-2 draw between Benevento and Torino, in an entertaining match including three disallowed goals.
A spectacular Giacomo Bonaventura volley and well-worked Dusan Vlahovic goal allowed Fiorentina to see off Crotone 2-1 in this relegation battle.
The fight for survival continues in Serie A when Genoa and Cagliari meet in a direct clash to distance themselves from the relegation zone.
Juventus host Bologna at lunch time on Sunday and the Old Lady aim to bounce back from a 2-0 defeat to Inter in Serie A.
Lazio and Sassuolo aim for a European spot as they meet at the Stadio Olimpico on Sunday.
Milan suffered their heaviest defeat of the season, as Atalanta put in a dominant performance to win 3-0 at San Siro, but are still crowned Winter Champions.
Parma are desperate for points, but Sampdoria have four victories from nine away games so far this season.
Roma rescued coach Paulo Fonseca’s job with a stoppage-time Lorenzo Pellegrini goal after a thrilling 4-3 win over Spezia.
Juan Musso made a fantastic save on Lautaro Martinez, but ultimately Inter just didn’t do enough to beat Udinese and missed out on the Winter Champions title.
Seven points separate Napoli from ninth-placed Verona ahead of their clash at the Bentegodi on Sunday.