Glamorgan Wanderers coach Richard Hodges must wait on some late fitness tests before confirming his pack selection for the trip to Bedwas in the Principality Premiership.
Alistair McDonald and Gareth Knight have been added to the squad and Hodges will delay the final line-up until just before kickoff.
In the backs Charlie Johnson resumes his place at outside centre with Matt Trowbridge moving out to the wing. Gareth Morris, fully recovered from a shoulder injury, returns to the squad after coming through a development squad game last weekend.
Glamorgan Wanderers: 15. Dan Fish 14. Matt Trowbridge 13. Charlie Johnson 12. Simon Rosser 11. Steve Cullen 10. Scott Sneddon 9 Lloyd Williams; 1. Nathan Trevett 2. Ieuan Dobbs 3. Scott Andrews (capt) 4-8 from: Tom Evans, Gareth Knight, Lee HighgateMazin Al-Azzawi, Ben Rose, Carl Kimber, Alistair McDonald.
Replacements: 16. Ieuan Davies 17. Mark O'Leary 18. John Barley 19. James Richards 20. Gareth Morris 21. Harry Trelawny 22. Robin Lock
Warren Gatland and Sam Warburton look ahead to this week's crunch RBS 6 Nations tie against France, where the Wales skipper in particular is keen to make his mark, as Paris has proved a bleak place for him in the past.
Following their historic win over England, Wales Under 20 suffered a narrow, 36-34 loss to their Scottish counterparts last weekend, despite outscoring them by five tries to three. Watch the match highlights and reaction.
WRU TV go behind the scenes with the Wales squad as they put the final touches in place ahead of the clash against Scotland at Murrayfield. Follow the squad on their captain's run, the kickers visit to Murrayfield and Neil Jenkins' press conference