The Belgian has led the Blues attacking line in recent weeks, with strikers Alvaro Morata and Olivier Giroud out-of-favour.Sarri began the season rotating between the two forward men, with Hazard playing out on the left.
But he ditched that approach in the 2-0 win over Man City, throwing Hazard into the No. 9 role with Willian and Pedro either side of him.
But after finding success in a more central role, the 27-year-old has revealed he has no problems filling in up-front as he respects his manager’s decision.
“Sarri told me before the season started that playing as a number nine could be an option,” said Hazard.
“It is good not just to be a target man, but also as a false nine where I can move, I can drop, I can go deep, I can go on the wing.
“I like to change a lot, but we also have two great strikers. We will see. It depends on who is on the pitch.
“He’s a good guy, he’s from another generation because he’s an older man, but he is close with the players.
“He is laughing a lot with us, and then when we are on the pitch we are working a lot also. It’s not just fun.”
Hazard is rumoured to be eyeing a move away from Stamford Bridge in the upcoming transfer window.
The Belgium captain has previously described a move to Real Madrid as a “dream”, and was thought to be close to completing a move in the summer.
But Hazard maintains he is happy with life right now in west London, hailing the efforts of his manager and his summer signings.
Great end of 2018 @hazardeden10 ⭐️ pic.twitter.com/IO32Lrvw9h
— Hazard Stuff (@HazardStuff_) December 30, 2018
He added: “We do a lot of tactical work, and you can see on the pitch we have improved a lot from last year; we have adapted to the new system.
“We have brought new players. Jorginho is helping a lot, [Matteo] Kovacic, the new goalkeeper Kepa [Arrizabalaga] is already very good.
“Everything is going well. The manager is talking a lot to us which is good.”