Arsenal's Champions League title defence is over as they were beaten 4-3 on aggregate by Lyon in their semi-final, with the French side deservedly winning the second leg 3-1.
Arsenal had taken advantage of Lyon's errors in the first leg to take a 2-1 lead into Saturday's game, but the hosts offered an entirely different prospect to the somewhat conservative showing last weekend.
One of those differences was the returning Melchie Dumornay - having missed the last four games through injury - who gave Arsenal the runaround.
The Haiti international won a 16th-minute penalty for the hosts after being fouled by Lotte Wubben-Moy. The spot kick was not given initially, but after a lengthy VAR review - which hinged on whether the Arsenal defender had touched the ball before the player - the referee overturned her own on-field decision and gave the penalty.
Lyon captain Wendie Renard had her first effort saved by Daphne van Domselaar - but as Arsenal attacked at the other end, the referee blew her whistle to retake the penalty after the goalkeeper was spotted off her line.
It was a long walk back down the field, but Renard's mentality won out. She went the same way with the second effort, but the Arsenal stopper could not keep it out this time as Lyon levelled on aggregate.
It was a deserved goal for the hosts, and they doubled their second-leg lead soon after. It was a wonderful finish from Kadidiatou Diani, losing Kim Little before lifting a leg and steering the ball home from a tight angle.
Arsenal ended the first half with just one shot, which was off target, but rattled the woodwork in quick succession around the hour mark - Stina Blackstenius and Olivia Smith finding the post on either side.
With 15 minutes to play, Alessia Russo - with the Gunners' first shot on target - smuggled her way through the middle of Ashley Lawrence and Lindsey Heaps to poke home Smilla Holmberg's cross.
But VAR was not done with this one yet, and it was another marginal call that decided the game. Dumornay picked out Jule Brand on the right of the area. It was a wonderful control and finish from the Germany international, but the flag was up for offside.
It took three minutes of VAR and semi-automated offside checks to decide that Brand was onside - the top of her shirt in line with the back of Wubben-Moy's foot.
It put Lyon 4-3 ahead on aggregate, and won it in the most dramatic of circumstances, ending the Gunners' pursuit of a second successive Champions League trophy.
For their part, Lyon are in a 12th European final, chasing their ninth title. They will face either Bayern or Barcelona in the final on May 23 in Oslo. The two sides play their second leg on Sunday and are currently drawn 1-1 on aggregate.
Arsenal defender Leah Williamson to BBC Sport: "Lyon are a tough team to play against. They were good today and we didn't quite match that in the first half. I thought we put on a better one in the second but not enough.
"You want to win the game, take chances and create chances and we didn't today. It's disappointing."
On whether the occasion was too big for the players: "Sometimes you have to give credit to another team for being on fire.
"This team is so humble and they work so hard. Everybody gives everything. One thing you can't take away is that everyone gave what they had.
"There are football games that go your way and arguably we should have scored a few more in the first leg to give ourselves a bit of breathing space."
On the VAR decisions: "I felt like at the start of the game the ball was in play for about two minutes in 20.
"With the rules... I don't think we're all on the same page with it, so it's frustrating. It was very stop-start."
Arsenal manager Renee Slegers to BBC Sport: "Lyon raised their levels today. They came out really strong.
"They had Selma Bacha and Melchie Dumornay back in the side, who are world-class players. They were really effective in certain moments.
"It was a very tight game, small margins… but very disappointing for us. We were so close and we all believed we could do it, even though we went through hard times today. When it went to 3-1, that was really tough.
"I spoke to a couple of players on the pitch and I said I feel gutted. They're so humble and work so hard, I wish for them all to go to a final but unfortunately this is football. There's a lot of disappointment in the changing room."
On if Lyon deserved it: "Yes, they were the better team. Across two legs it was two teams with styles of football that have gone against each other."
