Personally, I wouldn't want to risk Giannoulis or Pelkas in this game either. Thing is, there isn't really a replacement for Giannoulis so I guess he must start. I'd hold Pelkas back as a sub here and give him the start vs Olympiakos.
Here's who I would choose, but I am pretty sure El Kaddouri and Swiderski will start. Would be interesting if Swiderski and Akpom both start us off too. I'm still intrigued by how their styles might combine.
--Zivkovic--
--Matos--Varela--Ingason--Giannoulis--
--Mauricio-- --Esiti--
--Limnios-- --Stoch--
--Lamprou--Akpom--