In 2006, Niederkorn were promoted from the Division of Honour to the Luxembourgian top flight, the club initially struggled and had to face the relegation playoffs in the 2012–13 season.

[citation needed] On 13 March 2017, Rangers assigned Portuguese national Pedro Caixinha to the role of manager after the club finished third in the 2016–17 Scottish Premiership, which qualified them for the Europa League.

"[12] Rangers' starting eleven contained Caixinha's new signings Daniel Candeias, Alfredo Morelos and Fábio Cardoso, and Ryan Jack also received his debut.

It proved decisive as Emmanuel Françoise headed in the opener and scored the club's first European goal since a 1–1 draw against Glentoran in 1981.

Rangers failed to score a vital away goal which would send them through, despite hitting the bar twice, and Progrès secured their first win in European competition in their 100-year history.

For the players, humbling, and when the dust settles on what some are calling the worst result in the club's history there will be huge questions to answer for the Rangers board and manager Pedro Caixinha.

The BBC described the match as "humiliating" for Rangers, and the Daily Record dubbed it "a horror show", before adding "a utterly horrific result".

[16] On 26 October, a day after a 95th-minute equaliser at Ibrox by last-placed Kilmarnock saw Rangers draw 1–1, Caixinha was sacked and Graeme Murty took over as caretaker manager for the second time.

[17] In the second qualifying round, Progrès Niederkorn played Cypriot side AEL Limassol and were eliminated 3–1 on aggregate, losing both legs.