Napoli coach Carlo Ancelotti admitted frustration after their 0-0 draw with Chievo.

Napoli are now eight points adrift of Serie A leaders Juventus.

“This game is a good test to understand what we are going into on Wednesday against Red Star Belgrade," Ancelotti told Sky Sport Italia.

“It could be a very similar approach from the opposition, so dealing with this now can be helpful. There wasn't enough intensity today, especially in the first half. After the break we had more of a push, but the spaces were too tight.

“We were too bland in everything we did, from the attack to build-up play to defending. This allowed Chievo to play the kind of defensive game they wanted to.

“We've already put it behind us, as we ought to worry about these games beforehand, not after they've already concluded.

“There's no point looking at the Serie A table now. We'll look and evaluate only at the midway stage."