Gareth Maule, who impressed as a makeshift winger against Ulster, is ruled out with a minor shoulder injury while lock Jonny Fa'amatuainu also joins the injury list along with hooker Emyr Phillips.
Davies said: "The group has been really focused this week and the players are just eager to get back on the field and prove a few points - there's been no sense of panic at all.
"Our set piece let us down last Friday and we've put that right now - the boys have simply worked hard on the key facets of our game and got their heads down. I was comfortable with the rest of our game and there has been a big focus on our defence and it was good to see us 'nil' a team in terms of tries last Friday in those weather conditions.
"It's very tight in the top six positions and the teams are keeping up the pressure on each other. We believe there is everything still to play for and that's what makes the play-offs an exciting addition to the league."
Scarlets: Daniel Evans, George North, Regan King, Scott Williams, Joe Ajuwa, Dan Newton, Gareth Davies, Iestyn Thomas (capt), Rhys Lawrence, Rhys Thomas, Lou Reed, Damian Welch, Aaron Shingler, Johnathan Edwards, Ben Morgan.
Replacements: Craig Hopkins, Rhodri Jones, Simon Gardiner, Vernon Cooper, Richie Pugh, Martin Roberts, Owen Williams, Lee Rees.