Blues front rower John Yapp will be continuing his role as tighthead for the Wanderers.
Glamorgan Wandererers stick with the majority of the line-up selected to play in the two recent postponed games.
In the backs Dafydd Hewitt partners James Loxton in the centre with Jason Pocock retaining the full back role. Robin Lock comes in to replace Jamie Jones on the wing.
In the pack Scott Andrews take a rest on the bench after a hard week with the Wales Under 20's squad while John Yapp deputises continuing his education at tight head prop.
Glamorgan Wanderers: 15. Jason Pocock 14. Steve Cullen 13. James Loxton 12. Dafydd Hewitt 11. Robin Lock 10. Mark Roper 9. Luke Evans; 1. Nathan Trevett 2. Ross Johnson 3. John Yapp 4. Gareth Knight
5. Richard Thomas 6. Ben White 7. Ben Rose 8. Mike Grimes
Replacements 16. Richard Emms 17. Mark O'Leary 18. Scott Andrews 19. Nio Aiono 20. Lee Highgate 21. Scott Sneddon 22. Glenn Holloway
Glamorgan Wanderers Development squad, the only Welsh side in the Canterbury league setup, take their impressive recent form to Rosslyn Park on Saturday hoping to stay top of Division 1.
Earlier in the season Rosslyn Park traveled to the Memorial Ground and were defeated 35-21.
The squad includes Simon Rosser, continuing his recovery from injury, James Thomas, Charlie Johnson and Alex Luff from the senior squad. The side is captained by scrum half Andrew Cawley.
Glamorgan Wanderers Development Squad: 15. Charlie Johnson 14. Owen Marshall 13. Simon Rosser 12. Mike Hurley 11. Tim Downing 10. James Thomas 9. Andrew Cawley (capt); 1. Ryan Beddows 2. Chris Greenfield 3. Sean O'Sullivan 4. Chris Huntley 5. Alex Luff 6. Alistair McDonald 7. Andrew Bradbury 8. Karl Kimber
Replacements: 16. Scott Britton 17. Christian Gee 18. Richard Perry 19. Johnno Bateman 20. Nathan Palmer 21. Lewis Johnson 22. Luke Fear
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series