The new Cardiff manager has attempted to stoke up the rivalry between the two clubs by claiming that Cardiff are a bigger cluib than Swansea.
"We are the biggest club in Wales, aren't we? It is nice to be the manager of that," he said.
"It is nice to put smiles on people's faces. The atmosphere at the moment is very good and I do not think that is just at the club, but around the town".
Swansea manager Bob Bradley refused to be drawn into a war of words.
"I spent a few days in Cardiff during the [2010] Olympics, that is my experience with Cardiff so far," he said.
"My Welsh experience expanded this week by moving out of a hotel into a nice apartment.
"But as for the rest of it? I will leave that to Neil [Warnock]".