Napoli can become champions today, they only need to win to do so. The chances of this are extremely high, as Cagliari is not particularly motivated in points. But still the Neapolitans are under a lot of pressure from the tournament struggle, because of which they failed to beat Parma and Genoa in the last two rounds, who are just outside the relegation zone, and secure the Serie A championship.
So it's safer to bet on the total, as Cagliari are quite capable of surprises and can score today, although no one will be surprised if Napoli catch the spirit and score 3 goals.
Prediction: at least 3 goals to be scored. We recommend the "Over 2.5" bet, odds 1.48