Mark Taylor will join the new Llanelli province as the Scarlets strengthen their squad for a fresh assault on Europe next season.
And the British Lion will be followed across from Swansea to Llanelli by caretaker coach Paul Moriarty who has been handed the forwards coach role at the new region.
Wales centre Taylor, who had been tipped to join Gwent, has agreed terms with Llanelli where he will link up with several national teammates including fellow British Lions Scott Quinnell and Robin McBryde.
However, the move is sure to heighten speculation over the future of fellow Wales centre Leigh Davies who has been linked with a return to former club Neath.
Taylor, who turned 30 last February, was recalled to the Test team during the Six Nations after missing the autumn series through injury and becomes the seventh player to leave St Helen's within the last two months after the club entered temporary administration.
Kevin Morgan and Ben Evans have also quit cash-strapped Swansea who have this week, however, managed to safeguard the services of British Lions Colin Charvis and Scott Gibbs.
Meanwhile, former Wales forward Moriarty will join the Llanelli province as assistant coach in a move that symbolises the new 'unified' thinking in Welsh rugby.
The abrasive back-rower, once a figure of hate at Stradey Park during his playing days with bitter rivals Swansea, is the All Whites caretaker coach following the departure of John Connolly in late March.
But older brother Richard, director of rugby at Swansea, confirmed the younger Moriarty will join the Scarlets this summer.
'Perhaps it is a bit ironic that Paul will be part of the coaching staff at Llanelli considering the history between the two clubs, but I guess it is just a sign of the times,' said Moriarty.
'As you mature you can see the bigger picture which is often not so obvious when you are younger. It will be very interesting to see how the supporters take to him.
'But I think it is a good career move for him as a coach.'
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