Torino's wait for an away victory at derby rivals Juventus goes on after Cristiano Ronaldo's late header rescued a 1-1 draw.
Napoli delayed Juventus' coronation as Serie A champions for another week at least as a goal in each half from Kalidou Koulibaly helped them to a 3-1 win at Chievo.
Napoli fell 18 points adrift of Serie A leaders Juventus with a 2-1 defeat at Empoli that edged the reigning champions closer to an eighth successive title.
Napoli thrashed Claudio Ranieri's Roma 4-1 at the Stadio Olimpico on Sunday, with Arkadiusz Milik and Dries Mertens among the scorers.
Claudio Ranieri's Roma suffered a blow to their Serie A top-four hopes as they went down to a surprise 2-1 defeat at struggling SPAL on Saturday.
Napoli needed a late goal from Lorenzo Insigne to prevent Carlo Ancelotti's side from suffering back-to-back Serie A defeats after they salvaged a 1-1 draw at Sassuolo.
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