Lazio and Juventus have both escaped fines despite referee's reports from their Coppa Italia clashes noting racist remarks from the stands.
Several announcements were made over the public address system warning them that the game could be stopped if the chants continued.
Edin Dzeko & Roma have been firing on all cylinders of late but that came to a crashing halt in a 2-0 defeat to Rome rival Lazio in the Coppa Italia.
Lazio won its first derby in nearly four years as it edged city rival Roma 2-0 in the first leg of their Italian Cup semifinal on Wednesday.
Napoli director Cristiano Giuntoli called the penalty decisions given against his club on Tuesday "shameful and damaging to all of Italian football."
Paulo Dybala scored a pair of penalties as Juventus rallied from a goal down to beat Napoli 3-1 in their Coppa Italia semifinal first leg on Tuesday.