Rangers have already beaten Panathinaikos and Viktoria Plzen in previous rounds, the team is now fully focused on European Cup matches, getting into the group stage of the Champions League is much more important for the "Teddy Bears" than the domestic championship.
Brugge managed to beat Salzburg, beating the "bulls" on the road as well, but it will still be much more difficult in Glasgow, since Scottish clubs play very confidently at home, especially in European Cups.