Watch as Napoli get the victory they need to stay in the top four, as Lorenzo Insigne hits the woodwork twice, has a penalty saved and scores on the rebound, before a deflected Piotr Zielinski strike.
The Partenopei knew only a win would keep them ahead of Juventus going into the final round of the season.
It took a while to break the Viola down, as Insigne cracked a free kick against the crossbar, and even saw his spot-kick parried by Pietro Terracciano, but turned in the rebound.
Insigne thumped the upright too before Zielinski was fortunate to see his wayward shot deflected in by Lorenzo Venuti.