Chelsea coach Thomas Tuchel thinks the weight of expectation is affecting his players after successive defeats.
Tuchel watched Romelu Lukaku, Mason Mount, Kai Havertz and the other Chelsea stars tune up in training for a return to action against Southampton on Saturday and said: "It feels a little bit like we are carrying a mental weight on our shoulders from expectations.
"Someone told me several years ago that if players look like this then you can threaten them or calm them down... 99% of the time you can calm them down.
Tuchel says his team is missing "a little step from 90% to 100%" and need to "question ourselves deeply".
"We always demand the very best from us. Nobody likes to lose, we hate to lose.
"We need to respect the quality of our opponents. Also, we were not really bad. We have played good matches. We are looking for the last 10%."
Pictures of the Blues stars in training can be seen in the gallery above, To see the next image, just swipe.