Victor Osimhen made his second appearance since his return from injury and helped Napoli thrash visiting Salernitana 4-1 in Serie A in Sunday.
Osimhen was introduced in the 64th minute as Napoli sealed the win, which means they are now on 49 points and are four points behind leaders Inter Milan.
Also in action for Salernitana, who had a player sent off, are Nigerian duo Joel Obi and Simy Nwankwo.
Juan Jesus opened scoring for Napoli in the 17th minute but Salernitana equalized with Obi involved in the build up to the goal.
The former Nigeria international backheel flick sent Wajdi Kechrida down the right, he then pulled back from the by-line for Federico Bonazzoli to sweep in first-time from nine yards.
On the stroke of half-time, Eljif Elmas dribbled into the box and was surrounded by defenders, Frederic Veseli with the ill-advised challenge for a penalty, which Dries Mertens converted to put Napoli 2-1 up.
In the 47th minute, Amir Rrahmani made it 3-1 when Zielinski flicked a header backwards, Mertens flashed his assist across the face of goal for the defender to bundle over from close range with his knee.
And in the 53rd minute Napoli were awarded another penalty which Lorenzo Insigne converted, allowing him to equal Diego Armando Maradona’s 115 goals for the club.