Chelsea boss Graham Potter insists they "controlled" the game despite Thursday night's 2-1 defeat.
The Blues also saw Joao Felix sent off on his debut.
Potter said, "I think we controlled the game early won the ball back high created some opportunities maybe missed the last pass. We made a couple of mistakes for their goal.
"Second-half I think we responded well and then the red card changes the game. Makes it a little more difficult for us, I thought the application when we went down to 10 was really good.
"Disappointed with the goal because I think we could do better and that is what cost us.
"We have got to keep working there is no other solutions, you have to keep working stay together and try to get the three points."
On Joao Felix's red card, he added: "It was a forwards tackle, there was no malice in it but I understand why it was a red. it is another blow the hits keep coming at the moment. he was really good you could see his quality in the game so it is doubly disappointing for us."
