What chance has Lo celso and Sess got of playing if Vorm is not considered fit enough to sit on the bench.
Sess and Lo Celso have at least been training so they'll have some fitness. I think we might see Lo Celso on the bench.
Vorm has been without a club so hasn't really been properly training, but we also don't actually know if certain if he's even registered got the squad. There is apparently a rule that allows clubs to register a new goalkeeper if they find themselves short of keepers, but I don't know if that's happened yet.
If a player isn't fit there's no point putting him on the bench as it takes up a spot that can be filled by someone who could play if needed.