The Chelsea fans turned on Sarri during the game, booing his substitutions and singing “f*** Sarri-ball”.
Chelsea play Malmo in the second leg of the Europa League round of 32 on Thursday.
And then face Manchester City in the Carabao Cup final on Sunday.
After the match, Sarri admitted he was concerned about Chelsea’s results but not what the fans were saying about him.
“I am worried about the result,” he said.
“Not about the fans. I can understand the situation because the result wasn’t good.
“We are out of the FA cup so I can understand. I am worried about our results.”
When asked if he heard what the fans chanted, he said: “Not very well, but sometimes yes.
Sarri was then asked if the players had grasped what he wanted from them and replied: “Not completely at the moment, because especially in a situation like the second half when we need to move the ball faster, mentally and materially.
“We need more movements without the ball and less actions individually because when you have spaces you can go for the individual action.
“But when the situation is like this you must move the ball faster.”