Jose Mourinho has been left baffled by a first-half performance against Newcastle that was not good enough to win any Premier League game.
Chelsea came back from two goals down to draw 2-2 at St James’ Park after strikes from substitutes Willian and Ramires.
The reigning champions are in 15th place with just eight points from seven matches and are already eight points behind Manchester United.
“If we play like we did in the second half, we can win every match this season,” he said.
“But if we play like we did in the first, then we can lose every match. I am confused and do not understand why we were so poor.
“There is a question mark over why we didn’t do what the team was supposed to do and I have to try to understand why it happened.”
Mourinho admitted he would have happily brought off six of his Chelsea players after a first half in which Loic Remy, Branislav Ivanovic, Gary Cahill, Cesc Fabregas and Eden Hazard all struggled.
“I did not know which decisions to make. There were six players I could have taken off. I wanted to make six substitutions. That is how bad we were.
“I sat there trying to work out what was best for the team and had so many doubts, I decided to see what happened in the second half.”