Pochettino's men do have the slight relief of a three-week break now to regroup, but their next league game is a daunting one away to Liverpool and they also travel to title-chasing Manchester City next month.
The 46-year-old has enjoyed a remarkable run since being named as interim manager on December 19 following the dismissal of Jose Mourinho, winning 14 games, drawing two and losing just twice.
De Gea can not shoulder too much responsibility for Aubameyang's second-half penalty, but his inability to keep out Xhaka's first-half effort was questioned. We created more chances today than in the cup when we played them. "I don't class it as a mistake".
"We have won games we have not deserved to win, and today we lost a game we did not deserve to lose".
"Spurs are trending in completely the wrong direction and Arsenal, as much as they may be inconsistent, the one thing you can rely on from them is their home form".
Fox News condemns Jeanine Pirro's comments questioning Ilhan Omar's hijab
In a strongly worded statement released late Sunday, the network said it had addressed the matter directly with Pirro. Pirro questioned whether Omar's wearing a hijab indicated her adherence to Sharia law .
The result means that Arsenal jump back up to fourth - and into a Champions League qualification spot - and are now two clear of Man Utd, with eight games left to play.
"But we've given ourselves a great chance to be in that fight".
The Gunners' boss said: "I don't know if this is our best performance this season".
"We can feel very proud of the players". Emery said: "Xhaka is a specialist at shooting".
Although contracted to United for another three months, Molde - now in the Norwegian off-season - say Solskjaer, who managed the club from 2011-2014 and from 2015 onwards, will take up a new contract with them in the summer.
Next up for Arsenal is the second leg of their Europa League round of 16 clash against Rennes on Thursday night, with the Ligue 1 outfit holding a 3-1 lead following the first meeting in France last week.