Fer found the Cardiff net in stoppage time, only for referee Mike Jones to rule the strike was not valid, leading Mackay to praise the official and lambast Holland forward Fer.
Cardiff goalkeeper David Marshall had thrown the ball out due to an injury to Norwich midfielder Alex Tettey and Ricky van Wolfswinkel's throw in went to Fer, who tucked into the bottom corner as Marshall awaited a return pass, sparking a fracas.
Fer, a summer signing from FC Twente, insisted he had done nothing wrong.
"I just looked at the referee and he did 'play on' with his hands so I think the goal had to count," Fer said.
"I'm a little bit confused on that one. I meant to put it in because I wanted to win the game."
- Sports & Recreation
- Ricky van Wolfswinkel