It was an historic win for Rangers last week but they are only half way there.
Gio van Bronckhorst's team were on fire at the Westfalenstadion and while they may not need another four-goal masterclass to progress, they will still need to bring their A-game to finish the job against Dortmund.
The Bundesliga side laid down a marker at the weekend with their 6-0 win over Borussia Monchengladbach and they'll feel confident of mounting a comeback in Glasgow.
