Progres shocker 'shouldn't have happened' - Millerpublished at 18:10
Progres Niederkorn v Rangers (18:30)
Rangers will be determined to avoid lightning striking twice in Luxembourg.
Two years ago, under the ill-fated Pedro Caixinha reign, the club held a 1-0 first leg lead against Progres.
However, a 2-0 reverse saw Rangers knocked out of the Europa League in arguably the club's worst result in Europe.
The evening culminated in Caixinha remonstrating with fans in a hedge.
Former Rangers striker Kenny Miller - now at Partick Thistle - has a succinct description of that night.
"It was more a disbelief of 'what's just happened?', because it shouldn't have happened," he told BBC Scotland.
"For all the build-up and the dream to achieve European football again and talk of reaching the group stages, it was more of a disbelief of what had happened, because it shouldn't have."
Read more of Thomas Duncan's interview with Miller, here.