MAURIZIO SARRI has admitted he has no idea how Chelsea fell apart against Everton in their latest Premier League setback.
The Blues dominated the ball all game long but somehow slipped to a wildly sub-par defeat at Goodison Park.
Sarri admitted he doesn’t understand went wrong after failing to convert their chances on Merseyside, in a major blow to their top-four hopes.
The Chelsea chief told Sky Sports: “I don’t know [what happened]. The players don’t know what happened and at the moment I can’t explain the change.
“We played, in my opinion, the best first half of the season and we could have scored four or five times and then suddenly we stopped playing.
“It is very strange. We stopped to defend and to counter-attack, everything. [We became] another team, I don’t know.
“We only had to continue. We were in control of the match. We played very well, we defended very well.
“We needed to continue and by the end of the second half we didn’t play, without defending. It is strange. I cannot understand.”
Sarri continued: “Tactically if you don’t play, you don’t play with every system. We changed the system but it was the same. It is very difficult.
“I think the problem was mental so if you have a mental problem suddenly on the pitch the system and the tactics are not enough.
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“We started the match with a very strong intensity and a very strong mentality. I don’t know what happened.”
The Italian chief claimed the race for the top-four is very much still on, despite the setback.
Sarri added: “It is very hard but I think we have to play eight matches.
“We have to fight in the future for our possibilities.”