Quagliarella says the game against Napoli will mean more to him than its significance on the outcome of the Scudetto this season.
"It will be a special game for me," he said. "However, it won't be a decisive encounter in terms of who will win the title.
"It should be a great game, between two top sides.
"Napoli have been aiming for the Scudetto for the last two seasons and they could cause us some difficulties. We'll have to be alert."