Three-times champions Swansea have been drawn to play current holders Neath in the semi-finals of the SWALEC Cup.
In the other semi cup kings Llanelli will tackle Aberavon - with both games to be played on the weekend of 18/19th April.
Neath only just scraped through to the semis after sneaking home 32-31 against a fired up Cross Keys in the quarter-finals while Llanelli had to fight hard to repel Glamorgan Wanderers 27-20 at Parc y Scarlets.
Swansea brushed aside Caerphilly 62-3 but Aberavon had to work considerably harder to beat Newport 20-10.
Llanelli head of rugby Anthony Buchanan is expecting a tough challenge from Aberavon.
"It's going to be quite a challenge and we look forward to that," he said immediately after the draw. "It should be an interesting contest because we feel at the moment we are very fortunate to be in the next round as we didn't play well against Glamorgan Wanderers. But we're in the hat."
The draw for the Swalec Plate and Bowl will be revealed on www.wru.co.uk on Monday.
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.