Chelsea got an emphatic win to continue their unbeaten run thrashing Burnley 4-0, moving them to the second spot in the Premier League table.
The Blues are now two points behind Liverpool at the top and a point ahead of reigning champions Manchester City, who play Tottenham Hotspur in Wembley on Monday.
Sarri’s side barely felt of Hazard’s absence as Willian, starting in the Belgian’s normal position on the left, scored and hit a post.
Alvaro Morata gave Chelsea the lead midway through a first half in which he might have scored three times.
Ross Barkley set him up for that goal and added the second himself from outside the penalty area a few minutes after the second half began.
Willian curled the third past Burnley goalkeeper Joe Hart five minutes later and substitute Ruben Loftus-Cheek completed the scoring in stoppage-time.
Sarri, who became the first Chelsea manager to go unbeaten in his first 10 league games in charge said: “For 10 minutes it was difficult at the beginning but then we played very well,”
“I am very happy for Alvaro Morata and Loftus-Cheek again.
“At the end, everything is OK. We played very well in full control of the match for the last 80 minutes.”
Burnley’s manager Sean Dyche was left regretting another tough assignment against quality opposition following last week’s 5-0 beating at Manchester City.
“We started very well and then we give away a poor goal from our point of view,” he said.
“It was a top side doing what top sides do, they finish clinically.
“We have played two top sides back to back in City and Chelsea, who have delivered top performances and it’s hard to deal with that. We aren’t a million miles away.”
Former Manchester City goalkeeper, Joe Hart, conceded nine goals in the last two games but there was little he could do to stop Chelsea’s clinical and fine finishing.
Hart had made one fine save from Morata’s header and seen Willian’s drive hit a post before the first goal.