Liverpool boss Jurgen Klopp is expecting a tough contest against an 'interesting' Napoli outfit.
The Reds kick-off their Champions League group stage campaign in Naples on Wednesday.
Asked about Luciano Spalletti's side, Klopp said: "They are a young team but they are all good. I'm not 100% sure but I think not too long ago there was a nervous situation around Napoli when players left for different reasons, now it's settled again.
"I am really happy with the people here. One player who always stayed was Zielinski and you could build around him.
"It's a really interesting project I have to say. Good football with an intense style, different approaches, so they are really good, I have to say. Luciano Spalletti as a coach, no-one should be pretty surprised."