Higuain assured Napoli fans he “can improve a great deal” after scoring in the 4-2 win.
“I am happy, as this is a very important game,” he told Sky Sport Italia following his eighth Serie A goal.
“Now we can work all week to prepare for Cagliari. It’s a shame we conceded that goal before half-time, but we’ll work on that too.
“I am in good shape and the injury is forgotten. I’m still young and expect a long career ahead of me, so I can improve a great deal.
“The Coach was very happy. Now we can rest for a few days and try to win the next game.”