Chelsea manager Maurizio Sarri says his team have reached their mental limit, following their 2-0 defeat away to Everton.
Despite dominating the first half, the London side went on to suffer their seventh defeat in the Premier League this season following second-half efforts from Richarlison and Gylfi Sigurdsson for the Toffees.
Chelsea now sit three points behind fourth-placed Arsenal in the Premier League table with eight games to go, having missed the chance to take advantage of their game in hand over Unai Emery’s team on Merseyside.
Sarri is under immense scrutiny at Stamford Bridge after a disappointing start to his reign and the Italian has again appeared to question the mentality of his players after what was a solid first-half performance from his team.
"We played probably the best 45 minutes of the season and then suddenly at the beginning of the second half we stopped playing; I don't know why," he said.
"It is impossible that the situation is a physical problem because if it is, you can go down gradually, not in one second.
"It is very difficult for me to explain the change. Probably it is a mental block."
"At the moment, this is our limit.
"If we are able to play like in the first half with consistency, then we are in another position in the table."