The win kept Napoli neck-and-neck with Juventus, who thrashed AS Roma 4-1 on Saturday, at the top of the table. Both teams have 16 points from six games while Uruguay forward Cavani took his tally to six goals.
Fabrizio Miccoli scored a hat-trick to give Palermo their first win of the season, 4-1 against Chievo. Cagliari, beaten 2-1 at home by Pescara, are the only remaining winless team.
Torino scored four goals in a quarter of an hour during the second half to win 5-1 at Atalanta and Bologna thrashed Catania 4-0 in another one-sided game.
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