Arsene Wenger will not get his glorious farewell. Arsenal are out of the Europa League, having fallen victim to a familiar foe in Diego Costa.
It was the former Chelsea man who capitalised on a defensive error to score the goal that sealed Atletico Madrid's 1-0 victory, although in reality it was Antoine Griezmann's late strike in the first leg that was more decisive in the Gunners' 2-1 aggregate defeat.
Positives
It's difficult to find positives on a night when Arsenal's season has effectively ended. Wenger will be pleased with the confidence his team showed in possession, but they failed to take advantage of their good territorial positions. Perhaps the most encouraging aspect of the performance was the way in which young centre-half Calum Chambers responded to the challenge after coming on in the first half.
Negatives
Even the most disgruntled Arsenal fans must have hoped they could give Wenger a celebratory send-off in Lyon. Now, they know he will depart the club without ever having landed that elusive European trophy.
It was also sad to see Laurent Koscielny go off with what has been reported to be a ruptured Achilles. That will probably be the end of not just his season, but also his World Cup hopes. It's sad to see a loyal servant suffer such a serious blow.
Manager rating out of 10
5 -- Wenger now knows that his last season at Arsenal will be his worst. There's no silverware forthcoming, and his final few games will now be relatively meaningless. On the night, he may reflect on his decision not to start with either Petr Cech or Henrikh Mkhitaryan.
Player ratings (1-10; 10 = best. Players introduced after 70 minutes get no rating)
GK David Ospina, 5 -- Will Wenger regret opting for the Colombian in his hour of need? When Costa raced through on goal, Ospina somehow managed to make himself look even smaller than usual. His kicking was somewhat inconsistent too.
DF Hector Bellerin, 4 -- This was a disappointing night for Bellerin. Not only did he allow Costa to run off him in the build-up to the goal, but his crossing was also disastrous. Had his final ball been better, Arsenal might have offered a greater threat to the Atletico goal.
DF Laurent Koscielny, 5 -- What a sad sight it was to see Koscielny stretchered from the field in such visible pain.
DF Shkodran Mustafi, 6 -- The German international was bullied by Costa throughout the 90 minutes. On several occasions, he was bailed out by Chambers -- theoretically his junior partner. Unfortunately, Koscielny's injury means Arsenal probably need to keep Mustafi next season.
DF Nacho Monreal, 6 -- Much like Bellerin, Monreal wasted a string of opportunities to pick out his man from the flank. He looked a touch slower than usual -- perhaps the effects of a long season are finally taking their toll.
MF Granit Xhaka, 7 -- One of Arsenal's better performers on the night, Xhaka kept things moving as the Gunners looked to exert pressure on the Atletico goal. He also came closer to scoring than most, forcing a good save from Jan Oblak with a long-distance drive.
MF Aaron Ramsey, 6 -- In the first half, Ramsey was outstanding. However, in the second he was a little guilty of trying to do too much on his own. He found space on several occasions on the left flank, but couldn't make the most of it.
MF Jack Wilshere, 5 -- Unfortunately, this was the sort of performance that has become typical of Wilshere in the past few months. His passing was not as crisp as you'd hope, and he got himself booked after getting unnecessarily involved in some argy-bargy.
FW Mesut Ozil, 6 -- He was probably Arsenal's most threatening player, but fans are probably entitled to expect more from the highest-paid player in the club's history. It will be interesting to see to what extent the next manager will be prepared to indulge him.
FW Danny Welbeck, 6 -- Worked hard as ever but didn't manage to get away a shot at goal. Welbeck will probably look back on the chance he missed in the first leg ruefully.
FW Alexandre Lacazette, 6 -- Like Welbeck, Lacazette toiled but without any real reward. As someone who came very close to joining Atletico last summer, this result will really sting.
Substitutes
DF Calum Chambers, 8 -- Replaced Koscielny and performed superbly in difficult circumstances. This was one of Chambers' best Arsenal performances to date.
MF Henrikh Mkhitaryan, 6 -- Came on for Wilshere and came close with a dipping volley.