Mazzarri confident of win

The Italians face Roberto Mancini's side in a crucial UEFA Champions League clash on Tuesday at the San Paolo stadium.

Napoli managed to draw 1-1 at the Etihad Stadium in September and despite going into the game as underdogs Mazzarri believes they have every chance of beating their mega-rich rivals.

He said: "We're not making any calculations but we must interpret the game in the best way. That doesn't mean that to attack and to win we have to unbalance ourselves as has happened sometimes in the past.

"We're playing Manchester (City) with the knowledge that in the first match, especially in the second half, we played a great match against top drawer opposition.

World class

"We have to refer to that second half and do even more because we know that we're playing a team with world class players.

"We have the advantage that we've already played them, although they have improved in terms of results.

"They're going through a particularly positive spell but we know what to do and I think if we pay attention to everything we can hurt a team like Manchester."