Despite falling to two late goals against Chelsea, Mikel Arteta's return to the Emirates Stadium held many more positives than negatives.
Reiss Nelson and Mesut Ozil picked up where they left off on Boxing Day as they individually tore the Blues to shreds in the first half. Despite controlling most of the game, individual errors cost Arsenal the chance to go five points off the top four.
"Yes, I am really disappointed with the result and the way we conceded the goals and the timing of them as well," Arteta said in his .
"I'm pleased with a lot of things I've seen and I' pleased with things that we trained that actually happened in the game and how they buy into this.
"But I'm disappointed to lose the game. We have to sustain that level for longer periods against a very physical team like Chelsea and yes, we have to move on."
Below, we take a look back at some of the key moments you may have missed from the Emirates Stadium.
Reiss Nelson puts the team on his back
At Bournemouth, Reiss Nelson had a lively start but wasn't too effective. This improved over the course of the match and against Chelsea, he used this momentum to great effect.
Linking up with Mesut Ozil and Ainsley Maitland-Niles, he was terrorising Fikayo Tomori out wide. Early on the Chelsea defender was forced to bring him down shortly before the 20-year-old ran at him again to win a corner.
The moment that truly showed how ready Nelson was for this match came a little later, however.
Receiving the ball on the turn, he was brought down but as Craig Pawson whistled for a foul, Nelson played on. Jumping back to his feet, he was desperate to keep the attack alive, regained possession and drove at the Chelsea box. Arsenal fans' excitement grew as he entered the final third but Pawson blew his whistle again to pause play.
This alone showed the determination Nelson has displayed in the past three games. Things may not have always gone his way, but he is one of the players whose effort is standing out amongst the rest.
Now, the only thing that is needed is for him to starting making the difference in the final third - something he did do in the Boxing Day trip to Bournemouth.
Mesut Ozil's appreciation at the Emirates
Like Nelson, Ozil built off his Bournemouth display with another masterclass.
In the first half, he set the tone for everybody around him. Constantly finding spaces in between the lines, playing cute and incisive passes as well as being fouled three times, he was too much for Chelsea to handle.
Often times, he would drift out to the right to pick up the ball. One time he did, the German was closed down by three Chelsea players but still managed to get the ball away before they fouled him.
Pawson awarded the free kick but also helped the World Cup-winner back to his feet, ready for him to kick the game off again.
When Ozil was substituted, the entire stadium gave him a round of applause for a truly monstrous performance, and it wasn't just the fans. Even Alexandre Lacazette had to pay his respects by clapping the German off as he left the Emirates turf in very different circumstances to the last time he did so.
Bernd Leno's confusion
Following the game, the big talking point surrounding Bernd Leno was his mistake leading to Chelsea's equaliser.
However, over the course of the game, the German looked more shaky with the ball at his feet than in his hands. This was especially the case once Jorginho was introduced and Chelsea were able to push higher upfield without possession.
Running out of passing options, Leno's confusion was summed up when he spent at least 10 seconds surveying the field searching for a pass. Instead of finding an Arsenal shirt, with the crowd growing restless, he decided to pump the ball long.
Playing out from the back won't always work but the German must improve his long distance distribution. Going short won't always be possible and against Chelsea, he showed that going long isn't one of his strengths.
Although he was at fault for the equaliser and struggled at times in possession, Leno's heroics throughout the season shouldn't be forgotten, however, as Arsenal could be far worse off without him.
