Dries Mertens insists luck wasn't with Napoli for defeat by Champions League opponents Besiktas.
The Azzurri had been unbeaten in 19 European home games, but this 3-2 home loss was their third consecutive defeat in all competition.
“It hurts to lose like this," Mertens told Mediaset Premium.
“We created so many chances and tried everything we could. Besiktas had three shots on target and scored with all of them.
“It's not an issue of mentality or fitness levels, we were just unlucky."