One of the great traditional fixtures of Welsh rugby will take on a whole new meaning as Pontypridd go head to head with Llanelli in the quarter final knock-out stage of the British & Irish Cup.
The East v West clash has thrown up many memorable encounters over the years in the Welsh League and Cup competitions.
The Principality Cup final of 2002 when a Brett Davey inspired Ponty conquered the much fancied Scarlets, and the 2005 Konica Minolta Cup final when Llanelli came back at the death to clinch the honours are two recent stand-out ties.
Ironically it was against Llanelli that Ponty played their last ever home league game as a fully professional side back in 2003 - a hugely poignant occasion. Consequent developments have taken the two clubs on differing paths within the regional set up, but both still holding on to their fiercely proud traditions.
A long and dynamic history stands behind this fixture, but the match to be played at Sardis Road on Saturday (KO 2.30pm) breaks new ground as an all-Wales clash in a fledgling cross border competition - the British & Irish Cup.
The stakes are high, the bragging rights of Welsh club rugby are there for the taking, and for the class of 2011, this Ponty v Llanelli contest is as big as any that has gone before.
Whenever Bedlinog tackle Penallta a massive fixure is guaranteed but this Sunday there will be even more emphasis placed on the two rivals when they contest the SSE Swalec Plate final at Principality Stadium.
Ahead of their SSE SWALEC Bowl Final clash with Taffs Well at Principality Stadium on Sunday, Burry Port share their #FABXV nomination with WRUTV in the search for Welsh rugby's greatest volunteers. Everyone can get involved by sending nominations via twitter to @WRU_Community using the hashtag #FABXV
Cardiff Blues prop Gethin Jenkins and Ospreys centre Ben John look ahead to the first game at Principality Stadium in Saturday's double header which is promising to be a special occasion for all Welsh fans.
Carmarthen Quins Director of Rugby Ian Jones and committee member Jeff Thomas along with Llandovery chairman Handel Davies look ahead to Sunday's SSE SWALEC Cup showdown where both teams are out to prove 'West is best'
SWALEC ambassador Shane WIlliams is looking forward to Sunday's Finals Day where the Cup, Bowl and Plate offers a great opportunity for players and teams to experience the magic of playing at Principality Stadium
Carmarthen Quins coach Richard Kelly believes it is an exciting time to be part of the Scarlets region as his side take on local rivals Llandovery in the SSE Swalec Cup final on Sunday, as WRU TV's Graeme Gillespie discovers
Scarlets long serving prop Phil John talks to WRU TV's Graeme Gillespie about Judgement Day IV and SSE Swalec Cup finals day. The last time Llandovery were in the cup final in 2007, the Drovers claimed the spoils with Phil playing a major role in the engine room.
Meet Aberdare coach Luke Thomas whose #FABXV nomination goes to super volunteer Daz with a whopping 10 things he does for the club each week, all except the ironing! You can also join in the search for Welsh rugby's greatest volunteers, by sending your nomination via twitter to @WRU_Community using the hashtag #FABXV
SSE Swalec Cup kings Pontypridd travelled to Swansea, fully expecting a return to their second home but Llandovery had other ideas as they also sought victory in the semi-final to earn the right to play the final at Principality Stadium