TL;DR
Arsenal secured a 1-1 draw against Atletico Madrid in the Champions League semi-final first leg, but the match was marred by controversial refereeing decisions, including a penalty that was awarded and then rescinded. The situation has left Arsenal feeling aggrieved.
Figure caption,
Why VAR shouldn't have intervened to overrule Eze penalty
After goals galore in Tuesday's spectacular Champions League tie between Paris St-Germain and Bayern Munich, the officials took centre stage in the second semi-final 24 hours later.
Arsenal will return to Emirates Stadium next week with a creditable 1-1 draw from their first leg at Atletico Madrid - but that does not tell even half the story.
The match was a tale of three penalties. One was scored by Arsenal, one was scored by Atletico Madrid - and one, most controversially, was awarded to but then taken away from the Gunners.
Viktor Gyokeres put the Premier League side in front before half-time, scoring from the spot after being bundled over in the box.
Julian Alvarez then equalised with a penalty after a debatable handball decision given against Ben White - more on that later.
But the big talking point was the final penalty incident. Referee Danny Makkelie initially pointed to the spot when David Hancko caught Eberechi Eze. Then the video assistant referee (VAR) sent Makkelie to the monitor. And then the decision was overturned. It left Mikel Arteta "incredibly fuming".
"There is no clear and obvious error," Arteta said. "And this changes the course of the game. And at this level, I'm sorry but this cannot happen."
When asked whether he had been given an explanation for the decision, he added: "No. A very clear explanation of the decision and what happens for a period of time, a referee has to watch it 13 times, what's more clear than that? It's impossible and we are all fuming about it."
Should the penalty have been overturned?
Arsenal will rue their overturned penalty against Atletico. Only last month, we saw a different decision in very similar circumstances.
In the first leg of their last-16 tie against Bayer Leverkusen, the Gunners were awarded a late penalty when Noni Madueke went down in the area under a challenge from Malik Tillman.
Contact on the England international was slight, with Tillman landing on the forward's boot as he fell to the ground.
BBC Sport discussed this very incident with a senior figure in Uefa's refereeing body. They explained that while they would prefer no penalty was awarded on the field, the contact left the VAR with nowhere to go.
Fast forward to Wednesday's game, and Atletico's David Hancko clearly catching the boot of Eberechi Eze after he had played the ball.
Soft? Absolutely. A clear and obvious error? Based on what Uefa said about the Madueke incident, the decision should remain with the on-field call.
The Premier League follows the same logic in these situations. The decision might seem soft, but there's no reason to go against the referee's decision.