Ace Belgium footballer Hazard had revealed during the FIFA World Cup 2018 in Russian Federation that he was considering leaving the club, however, Fabregas has begged him not to go.
The Belgium international's links to the Spanish giants have increased exponentially following the end of his World Cup duties, having been identified as one of Real's top targets following Cristiano Ronaldo's €100m move to Juventus.
Hazard will become the highest paid player of real Madrid.
"He is the best player at the club and we need a Chelsea to keep the best players".
Sarri appears more diplomatic about recruiting and retaining players.
The forward, for his part, responded to the Real Madrid reports by telling journalists last Saturday: "You know my preferred destination. I would be very surprised if Chelsea didn't have big offers for him right now". This meant that the West London club is now ineligible to play in the Champions League next term and will face a hard summer in trying to keep hold of their star players.More news: Jason Bateman's hilarious advice for The Bachelorette's Becca and Garrett
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It is also believed that majority of the Barcelona squad are in favour of the club selling the 21-year-old.
"I'll stay", Neymar said.
"We started only four days ago".
"I can decide if I want to stay or go but Chelsea will make the final decision - if they want to let me go".
Sarri also said he will play in a "slightly different way" to predecessor Antonio Conte, who won the Premier League in his first season and FA Cup in his second after changing to a three-man defense. "Then during the season we'll see whether or not we want to have more specific objectives".
"We are a top club, we want to be a top team and win things".