Arsenal defender Sokratis Papastathopoulos says they let themselves down in defeat at Chelsea.

Marcos Alonso's late strike settled a chaotic Premier League classic in Chelsea's favour after Arsenal fought back from two goals down and threatened to earn a point at Stamford Bridge.

Sokratis stated: "It was a difficult game. We didn't start very well. For the first 20 minutes we were not playing as well as we wanted to be. After that we started to play. We missed a lot of chances but we managed to score two goals. In the end it difficult to find the goal to win the game. We didn't score, they managed to and we lost.

"We didn't defend very well in the first half, all the team. It was too easy for them to come into our half and score. After that, we started to play better, we pressed better, won a lot of balls in midfield and had chances. We had to score more because in the end we lost the game. We have to improve in the next game."

He added: "It's difficult because we've changed a lot of things. We need to improve our work, how we defend, how we attack. We have to score from the chances we create and we have to look at taking those points into our next game."