OH LOOK! The club has put out a lineup and everything. Match is in Austria, to answer my just-asked question.
Starting line-up: Alisson, Williams, Gomez, Van Dijk, Robertson, Fabinho, Keita, Jones, Mane, Salah, Firmino.
Substitutes: Adrian, Kelleher, Wijnaldum, Milner, Grujic, Minamino, Tsimikas, Brewster, Phillips, Hoever, Elliott, Van den Berg, Koumetio.
Curtis, not Gini, the third midfielder to start.
Looks like Shaqiri and Origi are both out of action, for some reason. Lots of kids on the bench.
Official site says the whole team will be changed at half time.