Chelsea boss Maurizio Sarri believes they're a step below the title challengers this season.

Sarri replaced Antonio Conte in the summer and has enjoyed a successful start to life at Stamford Bridge, winning all four of their possible league games this season.

When asked about challengers for the title this season - Chelsea last won the division in 2017 - the Italian answered: “At the moment I can answer Manchester City or Liverpool.

“We need another step I think to be at the same level. I think so, but I hope not.

“It's very difficult. The gap last season was 30 points so I think to go above 30 points in one season is very, very difficult.

“I think we must improve but we can improve."