Roma captain Francesco Totti scored twice and set up two more goals in a 4-2 win that ended Fiorentina's nine-match unbeaten run on Saturday.
The result left both clubs tied for fourth in the Serie A and marked a forgettable return for Fiorentina manager Vincenzo Montella, who played with Roma alongside Totti for a decade then coached the Giallorossi briefly last year.
Earlier, Atalanta beat Parma 2-1 to move into a tie for seventh.
German Denis put Atalanta ahead with a header four minutes in, and Federico Peluso doubled the lead in the 38th from a rebound of a shot from Denis. Amauri pulled one back for Parma in the 45th with a header.
On Sunday, league leader Juventus visits Palermo in coach Antonio Conte's return from a four-month touchline ban. Also, second-place Napoli visits third-place Inter Milan.
Roma, Fiorentina and Lazio are each six points behind Juventus.
At the Stadio Olimpico, both teams scored their first goals following free kicks.
Leandro Castan gav...