Scarlets Head Coach Simon Easterby has opted to test some new combinations with a mix of experience and some new faces joining the match day squad.
Back into the starting line-up are a handful of key Scarlets players including Wales international Ken Owens at hooker, Aaron Shingler in the second row alongside new signing South African lock George Earle, Josh Turnbull in the back row with popular Scarlet Tavis Knoyle at scrum-half returning from injury last season and with a full pre-season training period under his belt.
Easterby said: "This is an important fixture for us to see some other combinations on the field and how they work and to see how we've progressed in the summer and since our week's training camp in France.
"We've got some strong players on the bench to come on and take their opportunities including some players from our Premiership partner clubs and it will be good chance for us to see how they perform and fit at this stage ahead of the new season."
Scarlets: 15 Jordan Williams 14 Lee Williams 13 Nick Reynolds 12 Adam Warren 11 Andy Fenby 10 Dan Newton 9 Tavis Knoyle; 1 Rhodri Jones 2 Ken Owens 3 Samson Lee 4 George Earle 5 Aaron Shingler 6 Josh Turnbull 7 Richie Pugh (capt) 8 Kieran Murphy
Replacements: Liam Williams, Gareth Maule, Rheon James, Kristian Phillips, Aled Thomas, Rhodri Williams, Owen Evans, Richard Wilkes, Peter Edwards, Ed Price, Haydn Pugh, Kirby Myhill, Craig Price, Dan Thomas.