Second-place Roma rallied to beat Atalanta 2-1 on Saturday as the Serie A resumed after the international break.
Sampdoria rose to third in Serie A after a 2-2 draw against AC Milan on Saturday, while Sassuolo and Atalanta also drew.
Sassuolo missed the chance to climb into the top half of the table after being held to a goalless draw by Atalanta.
AC Milan suffered a 2-0 home defeat to Palermo in Serie A on Sunday after Sampdoria had earlier seen off Fiorentina 3-1
Torino were held to a goalless draw by Atalanta on Sunday.
Napoli's Gonzalo Higuain missed his second penalty of the season in a 1-1 draw at Atalanta.
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