Richard Hodges is taking no chances with the cup challenge of Carmarthen Athletic by packing the side with his most experienced players.
Mark Roper starts at outside half with Jason Pocock coming in at fullback.
In the pack Matthew Bolton starts at prop, Nick Kelly resumes as captain in the second row and Richard Thomas and Mike Grimes both start.
The one survivor of the last time the two sides met is Mark O'Leary who is amongst the substitutes. The game also sees the return to the side of Lee Highgate who starts after an enforced layoff.
Glamorgan Wanderers: 15. Jason Pocock 14. Robin Lock 13. Ben Warbuton 12. James Thomas 11. Charlie Johnson 10. Mark Roper 9. Luke Evans; 1. Matthew Bolton 2. Ross Johnson 3. Scott Andrews 4. Nick Kelly (capt) 5. Tom Evans 6. Richard Thomas 7. Lee Highgate 8. Mike Grimes.
Replacements: 16. Richard Emms 17. Mark O'Leary 18. Ben Rose 19. Gareth Knight 20. Glenn Holloway 21. James Loxton 22. Steve Cullen
Angus O'Brien has quickly settled into the Wales Sevens squad after solid performances in Hong Kong and Japan. With two rounds remaining in Glasgow and Twickenham on the World Series, WRU TV's Graeme Gillespie chats to the rising star.
Wales winger Luke Morgan has established himself as one of the deadliest finishers on the Sevens World Series. WRU TV's Graeme Gillespie catches up with him on the eve of this weekend's round in Glasgow.
All roads lead to Cardiff on Sunday for the SSE SWALEC Finals Day at the Millennium Stadium. Cambrian Welfare tackle Ystradgynlais in the Bowl final, Ystrad Rhondda play Newcastle Emlyn in the Plate final while defending champions Pontypridd face Bridgend in the Cup final.
WRU Chief Executive Roger Lewis, Deputy Minister for Culture, Sport and Tourism Ken Skates and WRU Chairman Gareth Davies earlier this week launched a new competition in conjunction with the WRU unveiling its archive room.
Welsh players and management joined Deputy Minister for Sport Ken Skates at the Pierhead Building, Cardiff Bay earlier this week to reveal the Union's pioneering school-club hub initiative has been so successful the project will now almost double the scale of the original project.
The Scarlets, Newport Gwent Dragons, Cardiff Blues and the Ospreys look ahead to Judgement Day III which sees the Blues take on the Ospreys (2.30) and the Dragons tackle the Scarlets (4.45pm) at the Millennium Stadium tomorrow afternoon.
Ystradgynlais and Ynysddu played out a titanic struggle at Taffs Well in the SSE SWALEC Bowl semi-final. At the end of the game neither team could be separated after a 15-15 stalemate but Ystradgynlais go through on try count.
Blues strike first in JD III battle - Newport Gwent Dragons lock Andrew Coombs, WRU referee Dylan Llyr Jones and Cardiff Blues hooker Matthew Rees decide dressing room allocations for Judgement Day III
Wales Under 18 captain Calum Haggett has received a conditional offer to read Biomedical Science at St Anne's College, Oxford. WRU chairman Gareth Davies went to meet Calum and Coleg y Cymoedd Principal Judith Evans to wish him luck in his exams and pass on some of his personal experience.