"We know that the press consider us right for an upset so that is great motivation," added manager Darren Joy.
The Wanderers make minimal changes to the side that was scheduled to play against Cardiff last week. Elliot Jones moves back to full back allowing top try scorer Rory Budina to start on the wing.
Up front Dan Crimmins, a rising star of the successful youth squad starts at No 8 and Nick Hampson having recovered from an injury gets a place on the bench alongside new squad member Greg Callow who has transferred from Bargoed.
Glamorgan Wanderers 15. Elliot Jones 14. Rory Budina 13. Rhys Howells 12. Lloyd Thomas 11. Joe Xiberras 10. Tomas Marks 9. Tim Cronin; 1. Gareth Tedstone 2. Marc Sheppard 3. Mark O'Leary 4. Richard Thomas 5. Alex Luff 6. Reuben Tucker 7. Lee Highgate (capt) 8. Dan Crimmins
Replacements 16. Marc Thomas 17. Joe Russell 18. Ed Morris 19. Nick Hampson 20. Harry Trelawny 21. Ceri Llewellyn 22. Greg Callow