Arsenal are not in the best of shape for Tuesday's encounter with manager Arsene Wenger starting the first game of his two-match touchline ban and injuries keeping out key defender Thomas Vermaelen and midfielder Jack Wilshere.
At least the Gunners finally got their domestic campaign up and running when they beat Swansea City 1-0 for their first Premier League win of the season with a hugely fortuitous goal from Andrei Arshavin at Emirates Stadium on Saturday.
Despite the win and some good midfield approach work from new signing Mikel Arteta, it was another nervy performance from Wenger's men albeit an improvement on their 8-2 defeat at Manchester United two weeks ago.
"We started quite well, but the nerves took over and we played with the handbrake on," Wenger, who lost his appeal against his UEFA ban last week, said.
"Confidence goes quickly, and comes back slowly, and for us to be in the situation we are in, we are not used to that. We need to put a few wins together."
"Dortmund were the best team in Germany last year, they do a good job passing the ball and have great players," the Germany international said.
"It will be difficult for us but I know we have very good players and I am confident we can get a result.
"Dortmund are the toughest opponents in our group so we will be very happy if we take something from this match."
Dortmund, however, are a shadow of last season's explosive team and a 2-1 home defeat by Hertha Berlin on Saturday has done little to calm nerves before the game.
"We can play much better than we did against Hertha and with a lot more creativity," Klopp said.
"We need to turn our weaknesses into strengths against Arsenal," central defender Neven Subotic said.
"Saturday's performance is not enough. It is not enough for the Bundesliga and most certainly not enough for the Champions League."
