Davies replaces Scott Williams in one of four changes to the side that crushed Mythical beasts, including an initial beginning this season for Carwyn Tuipulotu.
Cardiff make two first column changes with Dmitri Arhip and Kirby Myhill supplanting Will Davies-Ruler and Liam Belcher.
Focus Ben Thomas shows up with Rhys Priestland among the substitutions
Cardiff full-back Liam Williams will confront his previous side and line facing individual English and Irish Lion Leigh Halfpenny.
The Cardiff injury list incorporates Josh Navidi, Willis Halaholo, Jacob Beetham, Gwilym Bradley, Jamie Slope, Max Llewellyn, Theo Cabango, Dillon Lewis and Belcher.
With six successes under their belts this season
Cardiff sit in the URC play off spots and top the Welsh Safeguard rankings, with a five-point advantage over Ospreys, who crushed Dai Youthful’ s side on 1 January.
We were frustrated with our misfortune to the Ospreys, and portions of our exhibition, yet there were likewise components we were satisfied with and that is the very thing that we are hoping to expand on this week, said Youthful.
We caught in the game and played some great rugby when we had the ball, however this week we should be considerably more focused as far as adhering to our designs and frameworks.
It is perfect to have one more Welsh derby at the Arms Park and we are anticipating another enormous group so it will be splendid event for us.
The Scarlets won here last season
The Scarlets won here last season and they have won three of their last four games so they will be coming here with certainty and hoping to proceed with their vertical direction and we need to stop that.
Scarlets chief Davies comes in for hamstring casualty Scott Williams having supplanted him from the beginning against Mythical beasts on New Year’s Day, while props Steff Thomas and Javan Sebastian supplant Kemsley Mathias and the harmed WillGriff John.
Number eight Tuipulotu steps in for the suspended Sione Kalamafoni, while Argentina flanker Tomas Lezana is named on the seat after serving his boycott.
Physical issue list incorporates Josh Macleod, Edge Thomson, Sam Costelow, Tom Rogers, Harri O’Connor, Wyn Jones, Johnny Williams, Jac Value, Callum Williams, Samson Lee, Ryan Elias, Phil Value, Alex Jeffries, Corey Baldwin and Tom Cost.
Scarlets dealt with a subsequent association
Scarlets dealt with a subsequent association win of the time with triumph over the Mythical beasts yet stay fifteenth in the table.
That word force is significant, said protection mentor Gareth Williams.
It is just a subsequent association win in the URC to go with the draw we had on the primary end of the week, yet those two successes in Europe had a monstrous impact in us advancing our game.
That Mythical beasts win makes a big difference for energy and ideally we can develop that further this end of the week.
Cardiff have been fantastic since they won here in a firmly challenged game before in the season.
They move the ball well and have dangers which open their game up. We are energized by that test.