Chelsea manager Jose Mourinho has claimed that his side were punished for their defensive frailties in the 2-1 defeat to Basel in the Champions League.

The winners of the competition two years ago lost a lead before conceding twice late on to begin their campaign with a defeat, but Mourinho insists he was not surprised by the defeat.

"I'm not in shock. Sometimes you win sometimes you lose," Mourinho told reporters. "The reality is that sometimes you don't win.

"I'm not happy of course. We have taken a step back in qualification but we have to assume responsibility. We have five games left to finish in the top two.

"Basel equalised at our best moment of the game. After that we were punished defensively. We are strong at defending corners. Emotionally this is not a mature team and when you are in a difficult position it was not enough."

The other match in Group E saw Schalke beat Steaua Bucuresti 3-0.