"We had a good first half and controlled the game," he told SportMediaset. "But then we should have closed the game out. We made mistakes and gifted them their goal.
"After their goal we lost a little bit of confidence but after ten minutes we returned to controlling the game.
'I am not happy because Napoli should have won this game. We still have to get better and realize the importance of every match."
Napoli are currently third in the Serie A table.