Spurs are still to truly convince at their temporary home and Dortmund will be keen to exploit any lingering anxiety within Mauricio Pochettino's camp. In theory it should be Real Madrid first and the others trying for second, but football is not about theory.
"That's England, that's the culture and we have to be clever to find a different way to be competitive. But first we need to be better than Dortmund".
Last year, their group would not have looked out of place in the Europa League but they were beaten 2-1 by Monaco in the opening match, their first at Wembley, and never recovered, losing to Bayer Leverkusen at the national stadium before slipping to another defeat in Monaco.
The Gabon goal-machine Aubameyang managed a staggering 40 goals in all competitions last season, and has already netted six times in his first five this term which will allow the Bundesliga leaders to enter the contest with some confidence.
Tottenham also have seven league points in their domestic campaign ahead of tomorrow's clash, but are yet to win at their new home of Wembley this campaign having lost to Chelsea and drawn with Burnley.
"It's a tough competition with the amount of focus and energy you need, it's massive, maybe the same or more than the Premier League", he said.
"I think it's so important to try to win the first game and get three points".
"We've got to play our game".
"Real Madrid are on a different level: they won the last two Champions Leagues so it's a different reality".
Dortmund midfielder Nuri Sahin insisted his team were over it.
He said: "Last year we got off to a bad start, which didn't help us".
"Remember me we had to reduce gap to the top four sides, now we're fighting again to reduce the gap with these type of clubs in the Champions League".