Aberavon will be looking to prevent cup kings Llanelli from reaching their 19th final when they meet in the first of the SWALEC Cup semi-finals double headers at the Liberty Stadium on Sunday (kick-off 3.15pm).
When the sides met in the league earlier this season, Llanelli came out narrowly on top with a 27-23 victory.
And the Wizards have a score to settle with the Scarlets after their only appearances in the finals of 1974 and 1975 ended in defeat by this weekend's opponents.
Neath, the present cup holders, were the very first winners back in 1972 and they face a Swansea side in the second match of the day (kick-off 5.20pm) who last reached the final in 2000.
The Welsh All Blacks already have a league victory over the All-Whites this season and could become the first club to retain the trophy since Llanelli triumphed in 1991, 1992 and 1993 if they can find their way to the Millennium Stadium final to be played on 9th May .
Sunday, 19 April.
SWALEC CUP semi-finals (at Liberty Stadium)
Aberavon v Llanelli (3.15pm)
Neath v Swansea (5.20pm)
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