Paulo Dybala struck the only goal of the night.
Defender De Sciglio said, "It was an important victory, it was the first short-term goal to trace the long road in this competition.
"Ronaldo wanted to score as he always does, but he also puts the good of the team first, so he was especially happy for tonight's victory.
"With (coach Maurizio) Sarri I feel good, he has different ideas than (Max) Allegri, but it is a way of playing where you have fun. We've found more defensive solidity. In the second half we lost some of the condition, but we managed to keep the result."