Both managers involved in the 1-1 draw between Huddersfield and Stoke City were complaining about the refereeing after the match.
Ramadan Sobhi connected on Joe Allen's cross to cancel out Tom Ince's opener, but two controversial penalty no-calls from Anthony Taylor had David Wagner and Mark Hughes furious at the end of proceedings.
"We feel a little bit aggrieved if I'm honest," Hughes told Sky Sports. "It was clearly a penalty on Mame Diouf in the middle of the box. He is shaping to protect the ball and his legs have been taken away from him, so it's a clear penalty."
Wagner added: "I have seen our situation in the video footage again," said Wagner. "It is a clear penalty where the opponent didn't touch the ball, he only touched Aaron Mooy.
"It's a clear penalty when it was 1-1, so our opportunity to go in front. I think, from my position during the game, Stoke's penalty [appeal] was also a situation where they can get a penalty."