Tuesday 16 September 2014 17:20, UK
Arsene Wenger believes that the main Champions League contenders will come from Spain and Germany.
Wenger has taken his Arsenal squad, which includes German trio Per Mertesacker, Mesut Ozil and Lukas Podolski, to Westphalia to tackle Dortmund in the Sky Live match on Tuesday night and he expects the main challenge for the European crown to come from the Bundesliga and La Liga.
It is the third time in four seasons that Arsenal have played Dortmund at this stage and Wenger said: "It's not such an advantage to have three German players in the squad because we know Dortmund anyway. We play them each year!
"The main threats in the Champions League will still be the German and Spanish teams. Look at the number of times Bayern Munich have been in the final.
"There's no obvious reason why suddenly they shouldn't be there. Dortmund is a regular participator as well and in Spain you have the two big clubs - Barcelona and Real Madrid will be contenders again.
"We had a very physical game against Manchester City on Saturday so it will be tough for us but we have recovered well and sometimes in the second game you can be even stronger."
Dortmund played Arsenal in 2011 and also last season when they lost 1-0 at home, but beat the Gunners 2-1 in London.
Their coach Jurgen Klopp said: "Those who saw Arsenal here last year know very well they can also play defensive football and switch their game very quickly.
"So we should play according to our most natural virtues and take some tactical measures to keep them at bay."
Watch Arsenal tackle Dortmund live on Tuesday on Sky Sports 5 from 19.00
