Blackburn boss Mark Hughes slammed referee Phil Dowd after watching his side play out a 1-1 draw with Tottenham at Ewood Park.
Spurs equalised when Jermain Defoe scored from the penalty spot after Tugay was adjudged to have fouled Hossam Ghaly.
The Turkish midfielder was sent off but replays suggested he did not mean to bring Ghaly down, and Hughes was furious with the decision.
"I'm incensed, it was a genuine attempt to get across the guy, no intent whatsoever," he told Sky Sports.
"We tried to get the assistant to change his mind but he decided to send him off."
Tugay had earlier given Rovers the lead with a fantastic long-range volley, and Hughes feels the day should have belonged to him.
"It has taken the edge off the game for Tugay," he sighed.
"Everybody was very disappointed he was sent off because you want to see people like him play."
Tottenham's Mido appeared to handle the ball in his own area moments after Tugay's dismissal, and Hughes feels his side should have been awarded a penalty.
"Mido clearly handballed soon afterwards and these are big decisions," he said.
"This is three or four occasions this season when referees have not got these big decisions right.
"It's a game we should have won comfortably.
"We were by far the most strong and powerful team and, with an even wicket, we would have won comfortably.
"Mr Dowd did not have the best of games to say the least. I'm sure he would admit he has had a shocker."
Rovers defender Michael Gray also pointed to Tugay's sending off as the pivotal moment of the match, and defended his team-mate.
"Tugay is an honest guy - he was just running back and slipped," Gray commented.
"It certainly changes the game and it was farcical to send him off.
"The linesman was trying to tell him he was last man. I can't see how he could see it anyway."