Chelsea manager Jose Mourinho has revealed his disappointment in the side's defensive performance during their 2-1 defeat to Porto in the Champions League.
After the two teams went into the break level at 1-1, Maicon netted early in the second half to earn the Portuguese club the win, with Mourinho admitting that the Blues were "punished" for their lack of concentration inside their own penalty area.
The 52-year-old is quoted by BBC Sport as saying: "We watch dozens and dozens of repetitions of Porto taking corners. We were completely ready for that and in a moment when the game is under control, we concede a goal that is ridiculous.
"They hit the post from a similar mistake. Apart from that the game was balanced. Two ridiculous moments and we were punished."
Chelsea sit in third place in Group G, one point behind both Porto and Dynamo Kiev.
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