Sarri was pleased with Jorginho's role in Chelsea's greater fluidity going forward - they scored more than twice in a Premier League match for the first time since November - and claimed that the midfielder's less convincing displays this season have been due in part to the mistakes of those around him.
The Belgian playmaker's situation at the club has been a constant source of speculation in recent months as his current contract is set to expire at the end of next season.
It was no surprise for Hazard, who has seen firsthand what the former Napoli man can do in training, and he believes Chelsea have added a top quality finisher to their ranks.
As such, the 31-year-old is understandably elated to be reunited with his old boss.
Sarri's side now sit fourth, two points above a resurgent Man United in the battle for top four that could decide the Italian's fate.
But the Blues boss was keen to praise the partnership of Hazard and Higuain after the thrashing of lowly Huddersfield at Stamford Bridge, with the Italian adamant that the duo will get the best out of each other.
Willian has revealed that the Blues players are happy to see their new team-mate off the mark.
"I think when we play an important game against a top team maybe we are not the same focus as when we play another opponent. We can beat everyone if we want". Apart from the goals, he is really very suitable to play very close to Eden.
"We had no rules in terms of we could go and play where we wanted, the left and right-backs were going at the same time, which is unheard of at times, and we were playing some great football".
"We know when you play for Chelsea, when the results don't come, the pressure comes".
He said: "Today is all positive, we played a full 90 minutes, defended very well, so it was a very good match but we need consistency now, we have to continue to play with the same mentality in all the matches".
"After the [Bournemouth] game, which was a bad game for us, we came strong and we showed character".