Napoli climbed to fourth with a 2-0 win over Parma, equal on points with both Roma, who host Hellas Verona later on Sunday, and Lazio, who are sixth.
Napoli rebounded from last weekend's loss at Hellas Verona, despite a sloppy performance against 19th-placed Parma.
Eljif Elmas broke through after half an hour, collecting the ball in midfield, beating four opponents and finishing off the solo effort from an angle.
Matteo Politano added a second eight minutes from time with a shot which took a deflection off Parma defender Yordan Osorio.
Napoli coach Gennaro Gattuso hit out at the criticism he faces from "keyboard fans, in the era of lockdown" despite the team being in the running for a Champions League return.
"I get slaughtered every day and it's difficult," complained the former AC Milan coach.
"I'm taking slaps to the right and left every day, you'd think we are last in the standings."