Juventus have been boosted in their bid to chase down Serie A leaders AC Milan as the Italian champions beat visitors Bologna 2-0 to go fourth in the table.
Milan lost 3-0 at home to Atalanta on Saturday and Juve's win on Sunday takes them to within seven points of the leaders at the halfway point of the season, while they also still have a game in hand.
Sixth-placed Napoli suffered another setback when they lost 3-1 at mid-table Verona.
In Turin, Juventus started briskly and found a lucky opener when a shot from Brazilian Arthur was crucially deflected by Jerdy Schouten.
Juve winger Federico Bernardeschi missed twice in the box before a wide shot from Juan Cuadrado, who early in the second half almost put past his own keeper Wojciech Szczesny.
Bologna upped the tempo and forced a couple of saves but American Weston McKennie nodded in a corner kick in the 71st minute to seal the home win.
"This win was very important for us after Milan and Inter dropped points," McKennie said.
"Also because we have a game in hand and can draw closer. It will be a fight until the end of the season."
Napoli went ahead in the first minute when Hirving Lozano pounced on a poor clearance from Federico Dimarco, who then levelled in the first half before goals from Antonin Barak and Mattia Zaccagni.
"We got our performance all wrong," coach Gennaro Gattuso said as Napoli again disappointed after losing 2-0 to Juve in Wednesday's Super Cup game.
"I take responsibility and, if mistakes were made, it means that I got things wrong too."
The Neapolitans saw Lazio draw level on points after the Roman side rallied to beat visiting Sassuolo 2-1.
Ciro Immobile scored the winner and is now two goals behind Juve's Cristiano Ronaldo, who tops the league chart on 15.
Genoa moved four points clear of trouble with a 1-0 win over Cagliari, who are now in the three-team drop zone. Parma stayed second last after losing 2-0 at home to mid-table Sampdoria in the round closer.
Australian Associated Press