Think the midfield and Richarlison specifically will be key.
Allan, Doucoure & Gomes will have a week's rest in their legs whereas Tiago and Henderson were away on international duty. Regardless of how this factors in fitness wise we at least look stronger in the middle of the park than we have done in ages so battles absolutely need to be won there.
We need to look to set Richarlison away as often as possible and between the likes of James, Digne and Gomes we'll have opportunities to unlock doors based on how Liverpool's back line push a bit further forward than most. It's those moments where the likes of Dom can push and get positioned to cause some issues for their centre halfs.
As an aside, I just hope Seamus is as fit as he can be for this as, despite the fact that he's started the season well, I'm fearful of the damage that Mane is capable of.