The winger is set to start from the off at the Parc y Scarlets on Saturday night
Louis Rees-Zammit is set to make a return to Wales this weekend with Bristol Bears as they take on the Scarlets on Saturday night.
Bristol travel to Parc y Scarlets for round one of the Investec Champions Cup, with Rees-Zammit drafted in for the injured Jack Bates as one of two changes to the XV that beat Northampton Saints.
England and British and Irish Lions star Ellis Genge is the only other alteration from last weekend’s win.
Rees-Zammit came off the bench for the victory over the Saints and played for a little longer than boss Pat Lam had initially intended, having previously returned to the club carrying a knock from his time with Wales.
However, after coming through that contest unscathed, he is ready to face the Scarlets this weekend.
Lam said: “He is buzzing and running around quickly and looking pretty good.”
Meanwhile, Scarlets boss Dwayne Peel has made three changes to his side, all of which come behind the scrum.
Wales internationals Tom Rogers, Johnny Williams and Ellis Mee all take their place in the backline, with Peel hoping his side can kick into gear after a disappointing start to the season.
His side have won just one of their opening six games in the United Rugby Championship, but will step out into Champions Cup action for the first time since 2022.
Peel said: “We spoke at the start of the week about how hard we worked last season to reach the URC play-offs and qualify for the Champions Cup and it is awesome to be back in this tournament for the first time in three years.
“We are coming off the back of a good win over Glasgow, which has given us a bit of momentum coming into the tournament, but we know Bristol are a quality side who like to throw the ball about – that is their DNA – it should be an exciting contest.
“This club has a proud tradition in Europe, we have had some big nights here at Parc y Scarlets and at Stradey. Hopefully there will be a big crowd, the Anglo-Welsh rivalry always adds a bit of extra spice and we can enjoy another great occasion here.”
Scarlets: 15 Jac Davies; 14 Tom Rogers, 13 Eddie James, 12 Johnny Williams, 11 Ellis Mee; 10 Sam Costelow, 9 Gareth Davies; 1 Kemsley Mathias, 2 Ryan Elias, 3 Archer Holz, 4 Sam Lousi, 5 Jake Ball, 6 Max Douglas, 7 Josh Macleod (capt), 8 Fletcher Anderson.
Reps: 16 Marnus van der Merwe, 17 Sam O’Connor, 18 Henry Thomas, 19 Jarrod Taylor, 20 Dan Davis, 21 Dane Blacker, 22 Joe Hawkins, 23 Joe Roberts.
Bristol: 15. Tom Jordan, 14. Louis Rees-Zammit, 13. Benhard Janse van Rensburg, 12. James Williams, 11. Kalaveti Ravouvou, 10. Sam Worsley, 9. Kieran Marmion; 1. Ellis Genge, 2. Gabriel Oghre, 3. Max Lahiff, 4. Pedro Rubiolo, 5. Joe Batley, 6. Santiago Grondona, 7. Fitz Harding (c), 8. Viliame Mata.
Reps. 16. Harry Thacker, 17. Jake Woolmore, 18. Lovejoy Chawatama, 19. Joe Owen, 20. Ben Grondona, 21. Sam Wolstenholme, 22. Aidan Boshoff, 23. Josh Carrington.
