Update: Click HERE for live updates on Borussia Dortmund v Arsenal
"Defensive naivety " was the reason, according to Arsene Wenger, Arsenal lost their high-profile Champions League game against Borussia Dortmund a fortnight ago.
Well, there were certainly no signs of naivety against Liverpool in the 2-0 English Premier League victory at the weekend, and Wenger will expect a leaf to be taken out of that artful book when the Gunners travel to Germany to take on Dortmund in what promises to be another enthralling Champions League tie.
The 2-1 victory that Dortmund managed at the Emirates two weeks ago has made Group F live up to its Group of Death expectations, with three teams - Arsenal, Dortmund and Napoli - locked in at six points each.
The fourth side - Marseille - have failed to pick up a single point so far this season, and while they are not mathematically out of the equation, progress to the knockout stages does look quite difficult for the French side.
So, what that basically means is, it is a three-way fight for the top two places in Group F, and Arsenal will know the importance of at least picking up a point in Dortmund on Wednesday.
"Dortmund are a very good football team and so are Arsenal -- so we should see a good symphony," Wenger said. "We play to win everywhere. We have a positive attitude in our approach to the game.
"They are a very positive side, we are a very positive side, so at least you have the guarantee that two teams will try to win the game. I don't know if this will be a decisive match -- it also depends what happens between Marseille and Napoli -- but it is a very important match for us now, because we lost at home and now have to win the away games.
"We try to win every away game, which gives us strength and motivation. We had a few problems at home, but I hope those are over given we won the Liverpool match."
Dortmund are also high on confidence after easily thumping Stuttgart on Friday, and Jurgen Klopp, while aware of the pitfalls of overconfidence, will be confident of another positive result over the Gunners.
Team News: Dortmund will most probably have to do without Mats Hummels, who is struggling with a hamstring problem. "There is a 97.5 percent chance that Mats Hummels will not be available due to hamstring problems," Klopp said.
Marcel Schmelzer, though, is available, while long-term absentees Ilkay Gundogan and Lukasz Piszczek remain sidelined. Sebastian Kehl has returned to training, but is expected to miss the game against Arsenal.
The Gunners will be without Jack Wilshere, who is recovering from an ankle knock, while Theo Walcott, Lukas Podolski, Alex Oxlade-Chamberlain, Yaya Sanogo and Abou Diaby are definitely out. Serge Gnabry has travelled with the squad and should be available.
Key men: Borussia Dortmund: Robert Lewandowski showed Arsenal he is in the mood with a hat-trick against Stuttgart on Friday. The Polish international will be confident of finding the back of the net after scoring the winner against Arsenal in the reverse tie.
Arsenal: Aaron Ramsey scored a stunner against Liverpool and the midfielder just seems to get better and better. The Gunners will want the Welshman to step up against Dortmund and bring to the fore some of that magical touch which has been oh so visible off late.
Where to watch
The game is scheduled for a 1.15 am IST start on Thursday morning with live coverage on Ten Action. For the Live Blog click HERE.
Expected lineups: Borussia Dortmund: Weidenfeller; Grosskreutz, Papastathopoulos; Subotic, Schmelzer; Bender, Sahin; Aubameyang, Mkhitaryan, Reus; Lewandowski.
Arsenal: Szczesny; Sagna, Mertesacker, Koscielny, Gibbs; Arteta, Ramsey; Rosicky, Ozil, Cazorla; Giroud.