Marek Hamsik says Napoli must stay grounded after victory over Inter Milan.

The Partenopei earned a 3-0 win over Inter in an arena they hadn't conquered since 1994.

"It is an important victory against a great side like Inter, but it's too early to jump to conclusions or talk about the Scudetto," insisted Hamsik.

"We certainly benefited from Joel Obi's red card, but also played well and passed the ball around brilliantly.

"If we want to be a big club, then we have to do well on all fronts, including the Champions League and Coppa Italia."