Napoli matchwinner Lorenzo Insigne was delighted with victory over Champions League opponents Liverpool.
The forward scored in stoppages at the Stadio San Paolo for a heart-stopping 1-0 win.
“It's wonderful to win like this, but we had a great performance as a team and wanted the result at all costs," Insigne told Sky Sport Italia.
“Now we'll enjoy this victory for a little bit, because from tomorrow we have to focus on Sassuolo, which will be another really tough one."
Elsewhere in the group, Paris Saint-Germain destroyed Red Star Belgrade 5-1.
“We know it's a difficult group, we always did, but we want to make our mark in every game and put any opponent under pressure."