Tony Mowbray is still seething over Sunday's Old Firm defeat by Rangers at Ibrox by claiming that Celtic should have been awarded three penalties. On Monday referee Craig Thomson admitted he should have awarded the visitors a penalty with the score are 1-0, when Shaun Maloney was challenged by Rangers skipper David Weir.
There were later appeals for another penalty involving Maloney again and defender Mark Wilson who was booked for simulation.
After watching the game on DVD, Mowbray claimed the denial of two more spot-kicks was in keeping with some of the decisions that have gone against his side this season already.
"I have watched the incidents back and I don't think it would have been harsh if we got three penalties, but we can't question the referee's motives," he told Celtic View.
"He made a decision based on what he thought was right and in the aftermath he has changed his mind, but it's a bit too late for us.
"It's not the first time that we have had contentious decisions.
"I got drawn into the Aiden McGeady (diving) incident at Easter Road and there was a last-minute penalty against Dundee United, where (United manager) Craig Levein admitted he was disappointed his man didn't just go ahead and catch the ball, it was so blatant a handball.
"But we have to live with these things and it does not do to bleat about it because ultimately, it can deflect from the problems we have had, keeping clean sheets of late.
"As coaching staff we have to work to eradicate those errors because in recent games we have had to go chasing football matches after giving opposing teams a goal of a start."