Napoli’s all-time goalscorer, Dries Mertens, scored both goals in the 27th and 34th minutes.
To raise Napoli’s tally to 53 points in fifth place with a postponed match in its tally, surpassing Roma, who froze at 50 points in sixth place.
Napoli can jump to the qualifying seats for the Champions League if they win their postponed first-round match against Juventus.
This victory is the fourth for Napoli in his last 5 transfers to the capital to face Roma in the Italian League.
The match saw Mertens score his 100th goal for Napoli in the Italian league.
The Belgian international player is only 3 goals away from being the one with the most scored number for Napoli in the history of the league.