Napoli brushed aside Sampdoria with a 2-0 win on Sunday after goals from Victor Osimhen and Eljif Elmas, putting the Serie A leaders back on the winning track.
The visitors got a penalty after just six minutes but Matteo Politano was unable to score from the spot.
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Osimhen gave Napoli the lead after 19 minutes, however, when he got a toe on Mario Rui's cross inside the box and sent it in, earning his 10th goal in Serie A this season.
Sampdoria's fortunes unravelled further when Tomas Rincon was shown a red card for a reckless tackle on Osimhen in the 39th minute.
Elmas converted Napoli's second penalty eight minutes before stoppage time after a Sampdoria handball inside the box.
Napoli are top of the table with 44 points after 17 games, seven points ahead of Juventus and eight ahead of Milan, who play Roma later on Sunday.