Napoli coach Walter Mazzarri felt they should've done better in their 0-0 draw with AC Milan.

The Partenopei were held to a goalless result at San Siro even after Zlatan Ibrahimovic was sent off for slapping Salvatore Aronica.

"As far as we are concerned, it was a good performance against a great side like Milan," said the Coach.

"The many games in close succession probably took away some sharpness in front of goal and that is aggravating our crisis, but in terms of performance I have no complaints to make about this or our last few games.

"Once again, we lacked the final strike. We try to give our all and have a 'Final' against Siena on Thursday, because that Coppa Italia semi is a crucial stepping stone in our season.

"As for Serie A, we need to fight back and cut the gap as much as possible. Pocho Lavezzi is still finding his form after the lay-off and this game can help him to regain match fitness. He wasn't bad today, but we all expect more from him."