Napoli is unable to break the deadlock in the first half due to the strong defense of Cagliari. Quite a few attempts was made by Napoli but it was all in vain. The second half should be an opportunity for Napoli to win the match in order for them to secure an additional three points. Cagliari wouldn't accept defeat easily, therefore, Napoli need to look for a way to break through their defense.
Indeed, Cagliari didn't accept defeat easily. Napoli only managed to score through Zambo in the 90+5 minute. They were lucky to earn the three points. Even if they only scored one goal, they still earned the three points. That's what mattered, because they're in the title race. Furthermore, their opponents are tough and can give other big teams problems. That's why the three points earned here are so valuable.
Napoli was relieved after Zambo Anguissa scored the dying miunute goal. Napoli celebrated that goal as if it was the finals that they succeeded in winning. It was a tough match for Napoli because their visitors sealed up their defense. I expect Napoli to improve their performance in the next match so that, they can easily win the match instead of struggling all through 90 minutes.