Rangers 'have the edge'published at 18:12 British Summer Time 4 July 2017
Progres Niederkorn v Rangers (18:45 BST)
"I expect Rangers to get through, whether it's without any problems, I'm not quite so sure," says BBC Sportsound pundit Craig Paterson.
"Rangers were sluggish at Ibrox (in the first leg). I expect that, after that game and a bit more training, they'll be sharper tonight. And they'll have to be.
"It's absolutely boiling here in Luxembourg and it's not a night for running about box-to-box; you've got to make the ball do the work.
"That's why, Rangers with the quality players, will have the edge. But Niederkorn have no pedigree at all in Europe - they've never won a match and have only scored one goal.
"However, having only lost 1-0 at Ibrox, they actually fancy their chances."