Assuming no Koscielny and Sokratis:
Leno
Niles* Mustafi Monreal** Kolasinac
Elneny***
Ramsey --- Torreira
Auba --------------- Ozil
Lacazette
Subs: Cech, Lichtsteiner, Jenkinson, Xhaka, Guendouzi, Iwobi, Nketiah
*or Jenkinson if Niles needs a rest
**or Dinos and move Monreal to LB
***or Xhaka because we should be able to get away with playing him in this game. In this case, play one of Ramsey or Ozil up front and start Guendouzi or Elneny alongside Xhaka and Torreira