Chesterfield boss Paul Cook was uncharacteristically critical of the officials following his side’s 1-0 defeat at home to Bradford City.
Spireites’ skipper Sam Morsy was shown a straight red card for raising an arm to Andy Halliday, of the Bantams, early in the second half.
It changed the complexion of the game and Billy Clarke got what proved to be the winner for the visitors not long after with a spectacular strike.
Cook said: “It happened so quickly. I felt it was a genuine foul for us before it (sending off). My view was that it was handball before Clark scores the goal.
“My view was that continually there were decisions that were baffling from the referee. The sending off has changed the dynamics of the game. I never felt like the referee was in any kind of control.
“There were continuous offsides that the linesman on the far side wasn’t up with play. As the dust settles I do accept these officials will make mistakes, I’ve not got a problem with that.
“It just disappoints me sometimes when you’re playing against teams who are a little bit more streetwise than you, sometimes you need a little help from the referee and you don’t get it.
He added: “That’s what disappoints me, I don’t feel like they know the game.”