Sterling, Koulibaly and Chelsea stars get to work after troubling pre-season - in pictures

Manager Thomas Tuchel has been concerned about Blues' form ahead of new campaign

New signing Kalidou Koulibaly during a training session at Chelsea.

Chelsea's Hakim Ziyech and Cesar Azpilicueta during a training session in Cobham, England. All pictures by Getty Images

Chelsea stars Raheem Sterling and Cesar Azpilicueta during a training session ahead of the new season.

Ben Chilwell, Ruben Loftus-Cheek and Conor Gallagher take part in a training match.

Timo Werner and Jorginho during a session at Chelsea training ground.

Thiago Silva during a training session at Chelsea training ground.

Blues stars Michy Batshuayi and Malang Sarr compete for the ball.

Kenedy and Raheem Sterling during a training session at Chelsea,

Timo Werner during a training session at Chelsea.

N'Golo Kante and Reece James during a training session at Chelsea.

Kenedy during a training session at Chelsea.

Chelsea manager Thomas Tuchel has been voicing his concern about the form of his team just a few days before the 2022/23 season kicks off.

Tuchel says he cannot recall a pre-season from his career with such an alarming sequence of defeats as this summer, as the Blues struggled on their tours of Singapore and the USA.

Most troubling for Tuchel was the 4-0 defeat by London rivals Arsenal in Florida. “I don’t know if I ever lost a match in pre-season 4-0. I can’t remember not winning two matches in a row," said the German.

Chelsea stars, including new signings Raheem Sterling and Kalidou Koulibaly, are now back in training at their UK base in Cobham as Tuchel tries to put right their problems ahead of their Premier League kick-off at Everton on August 6.

The Blues have one more pre-season fixture, against Italian Serie A side Udinese, for Tuchel to make changes.

You can see images of Chelsea players training at their at Cobham base in the gallery above. To move on to the next photo, click on the arrows or if using a mobile device, simply swipe.