Swansea City captain Ashley Williams expressed his disappointment after yesterday's Welsh derby defeat to Cardiff City, showing his frustration at his team's inability to defend set-pieces.
The Swans went down 1-0 at the Cardiff City Stadium in a game that saw the first top-flight clash between the two teams from South Wales, with a Steven Caulker header proving enough for the home side.
Craig Bellamy's corner found the head of the ex-Tottenham player as he rose highest to head the ball into the back of the net and send Cardiff's supporters into raptures.
Williams, who captains both his domestic side and Wales, was quick to criticise the performance of his side and felt his team struggled to understand the importance of the game.
He told Sky Sports: "It was bitterly disappointing. I don't think we played well, I don't think we showed enough desire.
"We weren't solid enough off the ball, and we didn't show enough heart, in my eyes."
The 29-year-old was particularly disappointed with the way his team struggled to deal with the set-piece that created the winning goal.
He added: "If we can't defend set-pieces, we won't deserve to win the game and we didn't again today.
"I don't think they would have scored today if it hadn't come from a set-piece, I don't remember Michel (Vorm) having a save to make.
"(At set-pieces) you've got your man. I know my man, it's me against him, he doesn't score against me. If he does, it's my fault, it's that simple" the skipper admitted in frustration.
The Swans will have the chance to bounce back from their disheartening derby defeat when they visit Russian side Kuban Krasnodar on Thursday in a Europa League clash that could secure Swansea's progression into the knockout stage of the competition.
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