Arsène Wenger believes qualification from Arsenal's Champions League group is difficult but "feasible".
The Gunners will face Borussia Dortmund for the third time in four seasons and have also been drawn against Turkish side Galatasaray and Belgian outfit Anderlecht.
Wenger understands the size of the challenge but is confident his side can reach the knockout stages.
"It's difficult," the boss said. "We have experienced Dortmund a few times. Today when you play against the German teams, you know it's difficult. It looks a little bit like 'here we go again' because we've played them a few times now.
"We've just experienced how tough Turkish teams are [against Besiktas in the play-off] and Anderlecht I don't know well. But it's feasible.”