There is huge experience in the back row, with Davies, with an all-international trio of Simon Easterby, Gavin Thomas and Alix Popham.
And Scarlets number 8, Popham, who lifted the Powergen Cup title with the Leeds Tykes last season, overcoming Bath 20-12 at Twickenham believes the west Wales region has what it takes win on Saturday.
"They are a hard team to play against. They have a big, physical pack and some sharp backs. It's going to be tough and I think it's going to be a close game, but hopefully we'll be able to pinch it".
"Bath have players coming back from England of the calibre of Danny Grewcock and Steve Borthwick, so it's going to be tough. As well as that playing against Salesi Finau is always hard to counter".
Tickets for Saturday's back to back spectacular are still available from the ticket office at Stradey Park - to get yours - call the Scarlets ticket line on 0871 871 8088 before the end of play tomorrow (Friday, 3rd March).
Bath: Perry; Higgins, Crockett, Maddock, Finau; Malone, Walshe; Stevens, Mears, Bell; Borthwick (capt), Grewcock; Beattie, Lipman, Feaunati.
Replacements: Dixon, Flatman, Delve, Short, A Williams, Dunne, Abendanon.
Scarlets: B Davies; M Jones; Watkins, King, James; Hercus, Stuart-Smith; Dunlea, Rees, J Davies; Afeaki, A Jones; Easterby (capt), G Thomas, Popham.
Replacements: Madden, Gravelle, D Jones, Quinnell, D Williams, L Davies, Byrne.