Image source, Getty ImagesArsenal are unbeaten in their past six Premier League games against Chelsea (W4 D2), their longest run without a league defeat by the Blues since one of 19 matches between 1995 and 2005.
Where do Arsenal go from here? What do they need to do to beat Real Madrid? There is plenty to talk about the Gunners.
So, we are opening the floor for you to put your questions to BBC Sport's football news reporter Alex Howell.
Submit your questions here - and come back next week for a selection of his answers
Arsenal defender Myles Lewis-Skelly has received his maiden call-up to the England national team in Thomas Tuchel's first squad as England boss.
The 18-year-old has played in England youth squads, with his last appearance coming for the under-19s, but he has now been fast-tracked to the first team squad after his good form with Arsenal.
Lewis-Skelly made his Premier League debut for the Gunners in September against Manchester City and has since played 12 more times in the league, scoring one goal.
England face Albania and Latvia in World Cup qualifiers in a group that also contains Andorra and Serbia.
Arsenal, Liverpool and Manchester United are among the clubs showing an interest in Nottingham Forest and England midfielder Morgan Gibbs-White, 25. (Caughtoffside), external
William Saliba has no intention of leaving Arsenal despite Real Madrid being ready to pay a world-record fee for the 23-year-old France international centre-back. (Fabrizio Romano), external
Meanwhile, the Gunners are chasing a deal to sign Newcastle's 27-year-old Brazilian midfielder Bruno Guimaraes this summer. (Sun), external
Finally, Liverpool have joined Arsenal on the trail of 17-year-old French midfielder Ayyoub Bouaddi after his impressive displays for Lille this season. (TBR Football), external
Want more transfer stories? Read Friday's full gossip column
Image source, Getty ImagesMikel Arteta is not daft.
He is aware that the likelihood of them winning the Premier League title is super slim but he wants his players to perform at their best and finish the season on a high, in good form, playing good football and giving the fans what they want to see - which is an attacking and dominant side.
If they do that now, then they go into the next round of the Champions League knowing they have a chance of winning that trophy for the first time. Arteta will believe that his team can do that and I think that is what is different internally versus externally. He knows they can perform but most people will look at them as not being successful in terms of trophies in the past few years.
People think they can't do it but Arteta knows they can. Getting that message across to his players will be the ultimate challenge because they are stepping into these new spaces as a team with uncertainty.
If the manager sets them up right and the players play to the best of their abilities, they are as good as any team left in European competition now.
The league is still important though because you do not want to go into a big European game having lost at the weekend. Winning league games between now and the season can really set the tone, bring the energy and bring the belief from the fans and players.
Arteta is focused, driven and understands the situation they are in. Not every game will be a high or win, but it could help them with their ultimate goal, which this season is now winning the Champions League.
Nedum Onuoha was speaking to BBC Sport's Nat Hayward
Arsenal and Aston Villa are the last Premier League clubs standing in the Champions League and they both face European giants in the quarter-final stage.
Mikel Arteta's men have a mouth-watering tie against 15-time winners and reigning champions Real Madrid in the quarter-finals. Like Aston Villa, they will have the home advantage in the second leg
Should Arsenal and Aston Villa progress, they will play one another in the semi-final.
On the other side of the draw, Inter Milan, Bayern Munich, Borussia Dortmund and Barcelona await, meaning Arsenal would face one of those four in the final if they reach it.
Aston Villa and Arsenal are the last Premier League clubs standing in the Champions League and they both face European giants in the quarter-final stage.
Unai Emery's men will have to overcome Paris St-Germain for a place in the semi-final but will have home advantage in the second leg.
Should Villa and Arsenal progress, they will play one another in the semi-final.
On the other side of the draw, Inter Milan, Bayern Munich, Borussia Dortmund and Barcelona await, meaning Villa would face one of those four in the final if they make it to the end.
We asked for your thoughts after Arsenal cruised into the Champions League quarter-finals by beating PSV 9-3 on aggregate.
Here are some of your comments:
Steve: Great to see Jakub Kiwior and Kieran Tierney get some minutes. Yes, we would have preferred to win the second leg, but we were good considering the injuries. Who would have thought that a front three of Tierney, Mikel Merino and Raheem Sterling could exist?
Vince: The concentration was understandably below par, and it looked like certain players conserved pace and avoided going in too strong to prevent injury. That didn't include Raheem Sterling though. He knew this was another rare chance to impress and, if this game gets him back closer to his Manchester City and Liverpool form, Arsenal might yet make something of the Champions League.
Jim: I can't believe Sterling got man of the match - he missed two certain goal opportunities. Why wasn't the young striker given a game? We were six goals up and Arteta still won't trust him.
Decko: Real Madrid will have them for tea if they play like this. Do they have the players to move to the next level? Buying Sterling was and is a distraction for not getting a natural striker that has cost Arsenal any chance of winning the Premier League. As for a European title, dream on.
MOTD analysis: Sterling's performance against PSV
Raheem Sterling was introduced late on in Arsenal's recent home defeat by West Ham and the draw at Nottingham Forest in the Premier League.
He was also overlooked entirely by manager Mikel Arteta in the 1-1 draw at Manchester United.
However, with Bukayo Saka, Kai Havertz and Gabriel Jesus all out injured, former Newcastle and Republic of Ireland goalkeeper Shay Given believes his performance on Wednesday will provide Arteta with food for thought.
"Raheem Sterling is a big-name player. He is a Premier League winner and did so well at Manchester City," Given told BBC Sport.
"It did not work out so well at Chelsea and people will say it has not worked out for him great so far at Arsenal. But I think it is an opportunity for Raheem because you can see Arsenal's squad are struggling for forward players.
"He was hugging the touchline and he is direct. We know how quick and good he is and we have not seen enough of it in an Arsenal shirt."
Sterling set up Declan Rice's headed goal in the first half and has now contributed to 46 goals in the competition (27 goals, 19 assists), with David Beckham (52), Harry Kane (50) and Wayne Rooney (47), the only Englishmen to have delivered more.
Ex-Aston Villa and England defender Stephen Warnock believes the 30-year-old can have an impact in the final weeks of the season: "I think he deserves to be given an opportunity. When you look at Arsenal, they need speed in attack."
Arsenal are interested in signing Bayern Munich winger Leroy Sane on a free transfer, when the 29-year-old's contract expires this summer. (Christian Falk), external
New director of football Andrea Berta wants to make Newcastle United midfielder Bruno Guimaraes and Real Sociedad midfielder Martin Zubimendi his first signings. (AS - in Spanish), external
Image source, Getty ImagesArsenal forward Raheem Sterling, speaking to TNT Sports: "It was nice and I should have had a goal as well. It was nice to be out there and contribute to the team. It was just to play my game and be dynamic. I tried to do that.
"When you have a leader like we do with the manager, he has a tight knit group. You can feel it. From minute one I could sense a top-club mentality. Yes we are a few points behind but there are all different circumstances but I think the boys have done really well and in the last bit of the season to give it a right push.
"It is a decent performance from myself. I know what I am capable of. You just want to be playing. You are at a top club with top players and you just have to wait for your moment. And that is what I am doing. I am still faithful that I have still got a big part to play.
"You can only control what you can control. I have not had as many minutes as I would have liked but I have had the opportunities. It is down to myself to keep knocking at the door. I believe within myself that I have a lot to play here whether it is 10 minutes, 45 or a start. I just need to be ready and try and help the team as much as possible.
"With a leader like Mikel, he is not somebody where I want to physically be knocking on his door. He is the one in charge. All I can do is on the training field or on the pitch. It is down to me to push and have it in his thought process."
Image source, Getty ImagesArsenal boss Mikel Arteta, speaking to TNT Sport: "We started well and scored the goal. We were ahead twice but unfortunately we didn't manage to win the game.
"You could see in the second half we looked tired, we were late for a few things and we lacked a little bit of cohesion, making so many changes. Overall we are very happy because we are where we want to be.
"There were some players that deserved some football and I was very happy to give them a chance. There were a lot of things to improve."
Were you at the game or following from elsewhere?
Have your say on Arsenal's performance
Come back to this page on Thursday to find a selection of your replies
Four matches make up Wednesday's Champions League action, and we will bring you every moment.
Lille v Borussia Dortmund (Agg 1-1) - 17:45
Arsenal v PSV (Agg 7-1)
Aston Villa v Club Brugge (Agg 3-1) - BBC Radio 5 Live commentary
Atletico Madrid v Real Madrid (Agg 1-2)
All kick-off times 20:00 GMT unless stated
Alex Howell
BBC Sport football news reporter
Image source, Getty ImagesWilliam Saliba has been one of Arsenal's key players since he became a regular starter three seasons ago.
The 23-year-old signed a new contract in 2023 and at the end of this season will be entering the final two years of his deal.
The France international has been linked with Real Madrid in recent weeks but has said his contract situation is not on his mind.
"I'm really happy here," he said. "I've been here for two years and a half as well. There is nothing. I'm happy here and I want to continue here."
Saliba went on to say that contract talks have not started as there is "no rush at the minute" and he is "happy" at Arsenal.
The Champions League is likely to be the last chance for Saliba and the Gunners to lift a trophy this season. Arsenal have not won any silverware under Mikel Arteta since the FA Cup in 2020.
"I want to win big things with Arsenal," Saliba added. "If you leave this club without winning anything, the fans will forget about you. I want to win big things here."
Liverpool, Manchester City or Arsenal would be Viktor Gyokeres' preferred destination if the 26-year-old Sweden striker leaves Sporting this summer. (A Bola - in Portuguese), external
Arsenal are in pole position ahead of Barcelona to sign Espanyol's 23-year-old Spanish goalkeeper Joan Garcia. (Cadena Ser - in Spanish), external
Want more transfer stories? Read Wednesday's full gossip column
Alex Howell
BBC Sport football news reporter
Image source, Getty ImagesArsenal centre-back William Saliba has said the Gunners "don't deserve" to be top of the Premier League.
Arsenal are 15 points adrift of leaders Liverpool and have 10 league games left to play, one fewer than Arne Slot's Reds.
They drew 1-1 with Manchester United on Sunday and having lost some of their key attackers to injuries, they have only scored one goal in their past three league matches.
"If they [Liverpool] are first it is because they did something that we didn't do. Of course there is a big gap," Saliba said.
"We have to keep going. They are so good as well.
"I think this season, we don't deserve to be at the top. We have to keep going. We are second and there is a Champions League as well, we will push."
