Despite striking the ball sweetly with an element of swerve, De Gea will have been disappointed not to have saved Xhaka's effort with a clear view of the ball.
Arsenal and United were once slugging it out for the title in the era of Alex Ferguson and Arsene Wenger. I think it has been the same for everybody else. Of course we will lose more games in the UCL, but losing games like this is over.
Solskjaer said: "We are disappointed with the result but looking at the performance, you can not say it was a game we deserved to lose".
Defeat in the first one, against a United side buoyed by their remarkable Champions League win against Paris Saint-Germain, would have been a damaging setback to Arsenal's top-four hopes, but Emery chose to be bold.
Arsenal had the flawless weekend after their midweek Europa League disappointment.
In the second-tier League Championship, Aston Villa captain Jack Grealish was punched by a fan who ran onto the field at Birmingham City.
The result was slightly undermined by the fact that an Arsenal supporter confronted Smalling in the aftermath of Aubameyang's penalty and Emery condemned the actions of the guilty party, before noting that the rest of Arsenal's supporters played an instrumental role in his side's victory.
The visitors took a surprise lead in the sixth minute, with Ashley Westwood scoring direct from a corner.
The loss is also Solskjaer's first away defeat in all competitions since replacing Jose Mourinho at Old Trafford in December 2018.
"The way that Ole is asking them to play, they can't cope with it physically some of the players because they are being asked to run a lot further than they were previously".
"I don't want that", Emery said, as per Sky Sports. "In the last six matches, we won four matches and drew the other two".
I don't know why he's not so sure about it, it's gone in the centre of the goal from 30 yards. For that, Emery deserves credit; fortune favoured the courageous on this occasion and it might propel his side all the way into the Champions League next season. So there is a little consistency in this moment.
Even Arsenal manager Unai Emery said the decision looked generous to his side but he added that it made up for the one that went against them, and that Tottenham's Harry Kane scored from, when Arsenal visited Spurs.
Wolves are seventh in the standings but 13 points behind Chelsea.