According to the Daily Telegraph, Sarri has now loosened Conte's restriction on the players' nutrition and has given his squad more options to eat at the club's training ground.
Antonio Conte had managed to unsettle a number of Chelsea's stars.
Brazil worldwide Willian, who featured for the Selecao at the 2018 FIFA World Cup in Russian Federation, has revealed that he found it hard to play under previous Blues boss Antonio Conte.
However, the Italian paid for fallouts with a number of senior players and failing to qualify for the Champions League when he was finally dismissed after months of speculation over his future.
Willian himself was linked with a move away from the club with Barcelona reportedly lodging transfer bids, only for Chelsea to turn them down.
Kante played the full 90 minutes for Chelsea as they beat Huddersfield Town 3-0 at the weekend.
The second rule that Sarri has reversed surrounds Chelsea players' diets.
"Now the system is something different, especially the way we play now", said Kante. "I will only leave if Chelsea want me to go".
"The boys are working really hard trying to understand how the boss wants us to play, on and off the ball, and it will only get better".
Conte upheld a strict regime during his two seasons at Stamford Bridge and placed several restrictions on what his squad could eat.
"We have a great game to play against Arsenal and we want to win again", he added. "Now we have a different style, that's why we can create problems for Arsenal".