Servette have been dealt a big blow

The Swiss will be missing midfielder Gaël Ondoua, who was unable to travel to Glasgow. The Cameron international, 27, was denied a visa by British officials and hence was unable to go with his teammates to the game. The club claims it 'deplores' the situation and has explored all options for resolving it.

The opening leg will also be missed by captain Jeremy Frick, Miroslav Stevanovic, Keigo Tsunemoto, Alexis Antunes, Enzo Crivelli, Alexander Lyng, and Theo Magnin. René Weiler, the head of Servette, addressed the subject during this evening's news conference prior of the match.  "It's clear that these players are important to us, but I don't want to spend too much time talking about players who can't play," he added. I'd want to concentrate on the guys who are capable of playing.