Carlos Carvalhal reflected on two Wednesday penalty appeals which were turned down after the 0-0 draw with Bristol City.
The head coach thought a first-half challenge on Jordan Rhodes warranted a spot kick and, referring to a second-half tackle that sent Barry Bannan tumbling in the box, he said: “I have seen the video and in my opinion it is a penalty. There is no reason for Bannan to go down when he is in front of the goal about to shoot.
“We have played 17 games now and not had one penalty kick. These small things make a big difference.”
Carvalhal, who felt a draw was a fair result, added: “The game was very balanced – we played against a team doing really well in away games. They’ve just lost one game so far.
“We had chances and they also had chances. These types of games, if you score, it’s a massive advantage.
“I think our team misunderstood what they had to do. We missed a lot of passes, which usually we don’t do.”