Edinson Cavani followed up Wednesday's hat-trick against Lazio by converting a second-half penalty on Sunday to give Napoli a 1-0 win at Sampdoria and end their opponents' unbeaten record in Serie A 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. (For more sports news and updates, follow Ahram Online Sports on Twitter at @AO Sports and on Facebook at AhramOnlineSports)