Up front Alex Bourne comes in as open-side flanker and Ross Grimstone gets his first start at hooker. Rhodri Dawes and Sean Carroll also join the squad for the first time.
"We must find a way to compete at every aspect of the game, at present we are not putting together complete performances," commented Wanderers head coach Chris Ower before the visit of Newbridge.
"Newbridge will be smarting after their defeat at home last week. They will be keen to get back to winning ways. We must gain parity up front, if we are to have any chance," added forwards coach Matthew Bolton.
Glamorgan Wanderers 15. Michael Stephens 14. Owen Marshall 13. Joe Xiberras 12. Charlie Johnson 11. Dan Lovell 10. Gareth Cull 9. Rhys Griffiths; 1. Joe Russell 2. Ross Grimstone 3. Mel Lewis (capt) 4. John George 5. Ed Morris 6 Dan Richards 7 Alex Bourne 8. Carl Kimber
Replacements: 16. Steffan Simpson 17. Ryan Beddows 18. Andrew Bradbury 19 Sean Carroll 20. Rhodri Dawes