While the Napoli attack were trying their luck in the final third, the defense made sure their job was done in the best possible way. It was no accident that the visitors kept a clean sheet as the back line was up and aware of the possible threats, all producing solid performances. And all led by Koulibaly who did not stop running till the last minute, his work ethic is vital to Napoli’s defense. Annoying the Roma forwards and forcing them to turn back or to lose the ball.