SOUTHAMPTON, ENGLAND - OCTOBER 07: Maurizio Sarri, Manager of Chelsea looks on prior to the Premier League match between Southampton FC and Chelsea FC at St Mary's Stadium on October 7, 2018 in Southampton, United Kingdom. (Photo by Jordan Mansfield/Getty Images)

Chelsea manager Maurizio Sarri is well aware of the threat that Manchester City will pose ahead of their showdown on Saturday

After a promising start to the 2018/19 Premier League season, Chelsea have since lost two of their last three games and now trail leaders City by 10 points.

And the gap between them and City will increase this weekend should they suffer defeat at Stamford Bridge to Pep Guardiola’s side.

The Citizens have got off to a stunning start his term by winning 13 of their opening 15 matches and are still unbeaten at this stage.

Therefore, Sarri is braced for a gruelling encounter against a team that he reckons could even be the world’s best.

“Manchester City are in another category,” Sarri told MEN.

“We have to play and to fight to be in the top four. The result is very difficult for this, because I know in every match you have to gain points.

“In the last championship in Italy I lost Serie A with 91 points, so I know very well you have to gain points in every match.

“City are the best team in Europe, maybe the best in the world.”

The Chelsea-City game will begin at 18:30 (CET) this Saturday.