Manchester United suffered a 2-0 defeat to Unai Emery’s side at the Emirates thanks to goals from Granit Xhaka and Pierre-Emerick Aubameyang.
Defeat in north London saw Ole Gunnar Solskjaer’s troops relinquish fourth place to the Gunners, who they now trail by two points.
The loss has put a serious dent in their Champions League qualification hopes, which could hinge on them winning the tournament.
Understandably, the defeat has worried some Red Devils fans, who experienced a rollercoaster of emotions this week.
Paul Pogba took to Twitter and Instagram to allay those fears after the match, insisting he and his team-mates will bounce back from their recent setback.
Alongside a picture of himself and Ashley Young, the 25-year-old wrote: “Our greatest glory is not in never falling, but in rising every time we fall.”
United had a glut of chances to take the lead yesterday but were wasteful in front of goal.
Solskjaer rued the missed opportunities after the match, saying: “We started slow, maybe a backlash from Wednesday night.
“We created chances, that’s the thing. We created so many more chances today than, for example, than when we beat them in the cup.
“We hit the woodwork, we had big chances – sometime strikers take them, sometimes they don’t.
“We played a better game then but that doesn’t help the result.”
Defeat to Arsenal’s was United’s first in the league since Solskjaer succeeded Mourinho at the Old Trafford helm last December.
The Norwegian added: “We are disappointed with the result but looking at the performance, you cannot say it was a game we deserved to lose.
“We created five big chances, hit the woodwork twice.
“When you see the boys work as hard as they do, the attitude they show in training – today we were lethargic in the first 10-15 minutes, did not have the zip and we did not take the chances. Hopefully, we will be ready for Wolves in the FA Cup next week.
“It has been fantastic so far but today is the lowest we have been because we lost and missed the chance to put pressure on Spurs.
“We have won games we have not deserved to win, and today we lost a game we did not deserve to lose.”
United will look to get back to winning ways on Saturday afternoon when they take on Wolves in the quarter-finals of the FA Cup.