Ole low after Liberty lashing
Ole Gunnar Solskjaer admitted he was "bitterly disappointed" with Cardiff's 3-0 south Wales derby defeat at Swansea on Saturday.
The Bluebirds looked to be coping fairly comfortably at half-time in the Premier League clash at the Liberty Stadium, but were taken apart in the second period.
Cardiff boss Solskjaer said he was pleased with his side's first-half performance and a couple of chances to score at the start of the second half.
Five minutes after Wayne Routledge had scored the opener, Craig Bellamy had a great chance to equalise, but thumped the ball onto the crossbar.
Solskjaer said: "The first 10 minutes, they were on the front foot but after that I think we weathered the storm, I think we did okay.
"They didn't create any chances before half-time and we were happy with the performance up until then.
"But after a bad start to the second half, it changed the game - goals always do. The first goal in a game like this is important.
"After that, we responded well. We had two massive chances, one with Craig which hits the crossbar and one free-kick but that didn't go our way and then the lad (Dyer) scored a diving header in the corner.
"I'm bitterly disappointed and it hurts for a lot me, the players and fans of course."
Cardiff, who remain in 19th spot in the table, are back in action on Tuesday night when they play host to Aston Villa.