At Rodney Parade the Dragons still have a 100% winning record in the competition since their formation in the summer of 2003.
Edinburgh Rugby lost to a Welsh side last week in the guise of the Ospreys and in fact have not won in Wales in the Celtic League since beating the Warriors at Brewery Field twelve months ago.
The Dragons have won all three previous meetings they have had with Edinburgh including a 17-13 victory at Murrayfield last month in the Heineken Cup.
Dragons team: 15. Kevin Morgan, 14. Gareth Wyatt, 13. Nathan Brew, 12. Sione Tuipulotu, 11. Ben Breeze, 10. Craig Warlow, 9. Gareth Baber, 1. Rod Snow, 2. James Richards, 3. Chris Anthony, 4. Ian Gough, 5. Peter Sidoli, 6. Jamie Ringer, 7. Jason Forster (c), 8. Richard Bryan
Replacements: 16. Kieran Crawford, 17. Adam Black, 18. Rhys Thomas, 19. Ross Beattie, 20. Rhys Oakley, 21. Steve Winn, 22. Jonathan Bryant
Edinburgh team: 15. Derrick Lee, 14. Craig Joiner, 13. Marcus Di Rollo, 12. Paul Boston, 11. Simon Webster, 10. Brendan Laney, 9. Rory Lawson, 1. Craig Smith, 2. Andrew Kelly, 3. Joel Brannigan, 4. Fergus Pringle, 5. Alastair Kellock, 6. Todd Blackadder, 8. David Callam, 7. Simon Cross
Substitutes: 16. Dougie Hall, 17. Alasdair Dickinson, 18. Alasdair Strokosch, 19. Alan MacDonald, 20. Jamie Blackwood 21. Phil Godman, 22. Rob Dewey
Wales and Ospreys back row James King, who came through the North Wales age grade system, nominated North Wales Regional Community Rugby Manager Marc Roberts, in the WRU's 'Diolch' initiative where squad players thanked those who played a part in their rise to the top.
Beating Merthyr has boosted Carmarthen Quins hopes of reaching a top eight spot in the Principality Premiership. Quins captain Haydn Pugh is delighted with his team's progress and is determined that everyone from the Under 6s through to the senior team, enjoys the ride.
When the Wales squad were asked to nominate individuals who played a big part in their early playing days, Wales and Dragons full back and wing Hallam Amos thought of his former Monmouth School rugby coach John Bevan.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series