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