The Quins go into the game in a fine run of form and although they got the better of the All Whites last weekend, they have never won at St Helens.
Their record against Swansea is not one to be proud of although they did get the better of them in last year's home fixture.
Swansea have had a disappointing opening to the campaign and go into their clash with Carmarthen bottom of the Premiership table. They did have a good win over Dundee in the British & Irish Cup though, eventually running out 43-17 winners.
They failed to follow up that result with a win over the Quins though in last week's cup meeting and their inconcistency must be of huge frustration to Davies.
After a fine win last weekend, Quins will be confident of securing a first ever win at St Helens though the home side will make it far from easy for them.
Swansea: 15 Nicky Thomas 14 Rhys Williams 13 Aled Rhys Jenkins 12 Nicholas Harwood 11 James Thomas 10 Cameron Clement 9 Jonathan Preddy, 1 David Norman 2 Andrew Littlehales 3 Ian Williams 4 Benjamin Fox 5 Jonathan Barley 6 Robert Dudley-Jones 7 James Dax Bija 8 Steffan Jones.
Replacements: Scott Otten, Roy Jones, James McKenna, Aled Lewis, Benjamin Roberts, Jake Cole.
Carmarthen: 15 Darren Daniel 14 Lee Williams 13 Alex Pickersgill 12 Andrew Banfield 11 Jason Mark Harries 10 Jack Maynard 9 Rhodri Wells, 1 Gareth Thomas 2 Richard Wilkes 3 Trystan Davies 4 Carwyn Jones 5 Haydn Pugh 6 Aidan Laxton 7 James Michael Davies 8 Luke Joseph.
Replacements: Gethin Robinson, Andrew Beaujean, Gavin Lloyd Evans, Elis Huw Lloyd, Huw John Rees, Rheon James