Lazio coach Maurizio Sarri was pleased with victory over Napoli on Saturday.

Luis Alberto's flick had Lazio ahead before Piotr Zielinski found an equaliser. Daichi Kamada netted the winner for Lazio after clever play from Alberto and Felipe Anderson.

“It was a good performance. The first half we were under pressure, but after the restart I think we dominated," Sarri told DAZN.

“We scored 3-1 twice, it felt like the extra goal was in the air, it's a pity they were disallowed. One seemed perfectly fine from the bench, they told me the first was centimetres and the second could be debated all night

“Our second half proves the fitness levels were not the issue. It was just about mentality and today we were strong there too, because we held out under pressure, continued to keep our focus even after two disallowed goals and brought home the win. This was the mentality we didn't show in the first two games.

“Defending is about focus, spirit of sacrifice and concentration, so that is particularly linked with the right mental attitude."

Debutant Matteo Guendouzi made a big impact on the day.

“I remember him being a player of great intensity. He can also give us balance, because he has good defensive qualities too, so can be extremely useful. Even if he only had two training sessions with us, he seemed focused and was quick to pick up what we told him."