Napoli goalkeeper Morgan De Sanctis is unimpressed by the comments from Udinese midfielder Gokhan Inler.
Inler struck in Udinese's victory over Napoli last weekend.
De Sanctis said: "I was angry with Inler for his powerful and precise shot.
"He didn't celebrate and justified it with the story of his Neapolitan friends, but I'd be careful about professing this Neapolitan-ness.
"I don't have much trust in Neapolitan players who play against us. It's easy to talk about Napoli when you're on the outside.
"I say 'Viva Napoli' and 'Viva' above all those who have chosen to be here."