Werder Bremen gained the upper hand in their encounter against Celta Vigo after securing a 1-0 win in Spain.
Bremen substitute Hugo Almeida scored the only goal of the game with six minutes to go to make the German side clear favourites to progress through after the return leg.
A magnificent injury-time strike by Brahim Hemdani earned Rangers a scarcely-deserved 1-1 draw with Spanish side Osasuna at Ibrox.
Raul Garcia put the away side ahead in the 17th minute when he glanced home Juanlu's inswinging cross.
But Rangers, who had been outplayed for much of the tie, secured a draw when Hemdani curled a glorious shot into the top corner from 25 yards.
A magnificent injury-time strike by Brahim Hemdani earned Rangers a scarcely-deserved 1-1 draw with Spanish side Osasuna at Ibrox.
Raul Garcia put the away side ahead in the 17th minute when he glanced home Juanlu's inswinging cross.
But Rangers, who had been outplayed for much of the tie, secured a draw when Hemdani curled a glorious shot into the top corner from 25 yards.
Copyright (c) Press Association
Related Articles
Klopp wary of Bremen's 'slumbering talent'
Werder confirm Riise talks
