SANZAR referees boss Lyndon Bray has admitted that a farcical refereeing mistake cost the Brumbies victory in Saturday's clash with the Bulls.
Bray branded the incident - where Bulls loose forward CJ Stander scored a try after Morne Steyn clearly knocked on the ball in the build-up - as a "stone-cold mistake" by referee Marius Jonker but despite his criticism, Bray is backing the South African official for his overall performance.
This despite Brumbies coach Jake White's complaints about the heavy penalty count against his side in the Bulls' 36-34 victory.
Stander scored after his opponents and team-mates all stopped and waited for a whistle but Jonker and his assistant referees Lourens van der Merwe and Stefan Breytenbach all missed Steyn's indiscretion.
"That particular error is just a stone-cold mistake," Bray told AAP.
"He's just got to put his hand up and say 'we got it completely wrong'.
"That was between the assistant referee and the referee and that cost seven points.
"And that probably colours the overall view of the performance because of that mistake," he added.
White has demanded an explanation from SANZAR for the lopsided 14 to 6 penalty count against the Brumbies.
This proved crucial as Steyn kicked 26 points for the Pretoria-based franchise during the clash.
"I need to know what we have done wrong or what we need to change," White said.
"It's like any feedback - it's very hard to start changing things if everything I see is OK."
The former Springbok coach also found it difficult to believe how the Bulls conceded just six penalties, despite the fact that they were the second-most penalised team in the tournament up until last week.
"It's almost a 100 per cent turnaround from being the second-worst to giving six penalties away," he said.
"I can't understand how in one week the Bulls could have turned that around."