Napoli midfielder Marek Hamsik believes they can finish in the top four this season.
Walter Mazzarri's side are now sixth in Serie A, just two points outside the Champions League places.
"It was difficult because all seemed lost, but Mazzarri has been clever on the bench with the changes he made and Denis was very good. He showed himself to be decisive," Hamsik said.
"Another thing is also clear. The race for the Champions League is still alive. It's open to many teams and also to us. There is still a lot to play for.
"We did really well to react. It would not have been easy for anyone, but we are used to these fight backs."