The Premier Division programme has been reduced to six matches for Wednesday evening as Neath and Aberavon have decided to play their game as a friendly and Newbridge have had to call off their match against Pontypool due to a floodlight failure.
Caerphilly had the services of Newport Gwent Dragons wing Ben Breeze and No 8 Rhys Oakley in their side to meet Pontypridd at Virginia Park and Scarlets No 8 Jonathan Mills is likely to make a third appearance for Llandovery away to Carmarthen Quins, who are without new boy James Davies at centre, as he is on a fortnight's holiday.
Cross Keys are having to borrow scrum half from Bettws to play against Cardiff skipper Owen Ruttley at Pandy Park, where the visitors include former Wales flanker Rob Appleyard, but rest Under-21 skipper Jonathan Edwards, though Matthew Nuthall again appears on the wing.
Llanharan await injury reports before meeting neighbours Bridgend at the Dairy Field, but know that their former players, Anthony Carter, Huw Alford and Gareth Alexander are included in the Bridgend squad.
Bedwas, after a 5-try show at Llandovery, will be all-out to repeat last season's win over Newport in a match switched to Bridge Field from the originally scheduled Rodney Parade.
In the final match, coaches Scott Quinnell and Neil Boobyer will be looking hard at the Llanelli performance against Swansea at Stradey Park.