Russell Slade believes referee Chris Sarginson missed three blatant penalty shouts for Cardiff during the 2 - 0 defeat against Hull on Tuesday evening. Unsurprisingly visiting manager Steve Bruce thought the referee called it right.
"We have looked closely on the DVD and we think there are three strong penalty shouts and we did not get any of them," Slade said.
"We are upset - we made our feelings felt. We have to be careful how we go about that, but he got it wrong.
"His reason for not giving the high kick was it was too low, yet Ralls has barely lowered his head, so if that is not dangerous play I do not know what is.
"Mason was pulled back - everyone saw that - and then Dawson has got two hands on the ball when Joe Ralls shot from edge of the box. His hands are not in line with his body so I am confused by that decision.
"So it was a frustrating night. I thought there were some good things in our performance. We were just settling down when they scored.
"But they were ruthless with the chances they got."
Hull boss Steve Bruce, unsurprisingly, did not agree with Slade's assessment of the trio of penalty decisions, preferring to praise his players' application in finally producing a positive performance on the road.
"I thought the referee got all three of them right," he said.
"The one with the high foot, their boy is trying to drop down. For the handball I thought it was the right decision too. I don't know what they got their knickers in a twist about.
"But we are delighted with that result. Our away form was a concern. We had to arrest it and thankfully we have put in a really good performance against an excellent Cardiff side.
"We managed the aerial stuff with our three centre-halves and we looked good going forward.
"The application was excellent. We had been disappointed with our away performances. We wanted to respond and the players have.
"We looked like we had Premier League quality about us. We could even have had a couple more on the break, so it is an excellent result."