Barnet boss Paul Fairclough blamed the decision to send off Anthony Pulis for his side's 3-0 defeat at home to Torquay.
Pulis, making his debut on loan from Southampton, was red-carded for a foul on Chris Zebroski with more than an hour left to play.
Torquay were already leading through a first career goal from Lathanial Rowe-Turner and Billy Kee and Zebroski wrapped up the Gulls' win late on. But Fairclough was unhappy with Zebroski's reaction to the tackle and also pointed to an incident when Craig Stanley hauled down Izale McLeod when he appeared to be the last man but was only booked.
He said: "In the first 20 minutes I could only see one winner, and that was us. Even after the first goal I thought we were playing well enough to get something.
"I didn't think Anthony deserved his red card - the player went down like he was hit by an exocet and I couldn't see any difference with that and when McLeod was pulled down by the last man. And he only got a yellow.
"He didn't come off his feet but the Torquay players have surrounded the referee and we've had a man sent off."