Swansea and Neath clash at St Helen's on Friday (7.05pm) in the highlight of the five matches that kick-off the second of the Celtic League.
The All-Whites delay naming their side after having been beaten up front in Ednburgh last week. Meanwhile, the All-Blacks have named a squad of 22 that is without the injured Brett Sinkinson, Steve Martin and Adam Matthews in the pack and with Andy Moore being the scrum half named, as Patrick Horgan has
The clubs have won 11 each in league tussles, but Swansea have won the last five home meetings.
Ebbw Vale make changes from their home loss to Ulster for their visit to Musgrave Cork, Cork, where they take on almost a second-string Munster side (7.35pm).
Munster are shattered by Irish squad calls, while skipper Chay Billen is still not fit for Ebbw Vale and prop Adam Black again leads. Mark Meenan takes over at fly half with Aaron Takarangi being brought in at wing.
Vale have a problem at hooker, where former Cambridge Blue Jonathan Evans
has a cut head and is replaced by Chris Bevan.
Cardiff lost 6-3 at home to Connacht last season and go to the Galway Sportsground in search of revenge (6.00pm).
Eric Elwood is expected to pass a fitness test on an injured rib,while Cardiff have Nicky Robinson and Richard Smith at half back and Iestyn Harris and Ryan Powell in reserve. Canadian Dan Baugh is also on the replacements bench.
The other two matches do not feature Welsh clubs, but Welsh referees ARE featured.
Ulster entertain Edinburgh at Ravenhill (7.30pm) with Huw Watkins in charge and Nigel Whitehouse will control the Glasgow-Leinster match at Hughenden (7.30pm).
Leinster hope to have big Victor Costello at no.8 and 11 wins in as many Celtic League matches in two seasons, while former Scotland captain Andy Nicol is back to lead Glasgow.
RGC 1404 have celebrated their crowning as Division One East winners, after just one season of competitive rugby. A big crowd turned out to support the clubs 'Celebration Saturday' when they were presented with the SWALEC trophy following their definitive 45-0 home win against Rhydydfelin on 18 May.
A special video package as Pontypridd claimed the double for the first time in their history by winning the Principality Premiership final, including match build-up, highlights, post match reaction and dressing room celebrations.