The Partenopei missed a host of chances as they dropped two points in their bid to catch Juventus at the top of the table.
"I have to pay tribute to my players," he told Sky Sport Italia. "Today we played a great match against a tough opponent.
"We were just unlucky. However, when my team plays like that I am happy - I cannot complain.
"We created a lot of chances, but the ball just didn't drop for us."