Refereeing mistakes are becoming a real problem in professional football - just ask Bayern Munich.
During their Champions League quarter-final defeat against Real Madrid on Tuesday, the Bavarians were victims of some truly terrible decisions.
Viktor Kassai, who officiated the game, was guilty of incorrectly showing red to Arturo Vidal for a fair challenge and allowing two offside goals scored by Cristiano Ronaldo.
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Worse still, Vidal's dismissal came after Casemiro avoided a yellow card on no less than four occasions for reckless fouls. Simply put, the referee had a nightmare.
Carlo Ancelotti was left incensed by Kassai's performance, so much so that he hunted him down after the game and sarcastically told him "good job".
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In quotes related by BBC Sport, the Bayern manager also explained how such bad refereeing shouldn't be happening in the quarter-finals of the Champions League.
"We had thought of everything going into this game - except the referee," Ancelotti said. "You can't decide a semi-final spot like this. It shouldn't happen at this level."
A number of Bayern's players have since slammed Kassai for his display, with Vidal and Franck Ribery both posting pictures on Instagram of Ronaldo standing in a blatant offside position.
Ancelotti's wife, Mariann Barrena, has now joined that trend with a rather scathing assessment of the game. In fact, she absolutely nails it.
Writing on her own Instagram page - which is set to private - Mariann described the refereeing as a "disgrace" and called for video technology to finally introduced. Check it out.
ANCELOTTI'S WIFE LETS RIP
She wrote: "As it is now unanimous, I too will speak the truth! The refereeing during last night's game was a disgrace.
"This should not happen at this level of the beautiful game. We deserved much more.
"It is time to bring in video technology, so that this game goes down in history as an example of what should never happen again."
Spot on. In games of such high importance, referees should be more than capable of making the right decisions - or most of them at least.
But the introduction of VAR (Video Assistant Referees) would solve that. Referees can't see everything - they're only human - whereas video replays are 100% accurate.
Mariann has made yet another strong argument for technology to help referees and it's about time something was done about it.
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