Sarri admitted his concern after Chelsea were handed their heaviest defeat in almost 28 years.
Maurizio Sarri was disappointed with how Chelsea fell at the hands of Manchester City on Sunday.
The west London side lost 6-0 to Pep Guardiola’s Citizens at the Etihad as Sergio Aguero‘s hat-trick, Raheem Sterling’s double and a strike by IIkay Gundogan helped the homeside bounce back to the Premier League summit, with Chelsea dropping down to sixth spot, one point behind fourth-placed Manchester United.
It was Chelsea’s third loss in four league games, their heaviest defeat in almost 28 years and the Italian said his job was "always at risk" following the match.
When asked if he feared for his job, he replied: "You have to ask the club. I am worried about my team.
"I am worried about the performance, but my job is always at risk. So, I am not worried about the club. You have to ask the club.
“I didn’t see my football (against City). At the beginning (of the season) it worked. So now we need only to understand the reasons why at the moment it isn’t working. We need to understand the reasons.
“It is not easy. At the beginning, we played better away than at home. Now we are playing better at home than away.
“Something is changing. At the moment I am not able to see the reason but I have to work for this because my target is to play my football, not to change another football because at the moment we are playing another football.”
Chelsea return to action with an away trip to Malmo for the first leg of their Europa League last-32 tie.