Llanelli Scarlets face the prospect of supporting arch rivals Cardiff Blues to avoid missing out on the Heineken Cup for the first time in their history.
The Scarlets have competed every year since the Heineken Cup was formed in 1995 and were regarded as one of the powerhouses of European rugby.
They reached the quarter-finals seven times in the early years of the competition and were three-time semi-finalists in 2000, 2002 and 2007.
But their hopes of automatic qualification for next year's tournament were dashed after losing to the Blues in the Magners League.
Now they must swallow their pride and cheer Cardiff to lift the Amlin Challenge Cup and earn an extra place for Wales by lifting the cup.
Scarlets boss Nigel Davies said: "Unfortunately that is the position we find ourselves in now. We felt we were good enough to win our remaining games but now we need the Blues to do us a favour or we're playing in the Amlin Challenge Cup. The quality in the pool stage of that competition just isn't the same as Heineken Cup rugby."
Cardiff coach Dai Young admitted his team would fly the flag as the last Welsh team in Europe against England's final hope, Wasps.
Young said: "The pressure is off us a little now after qualifying for Europe. We want to win the Challenge Cup for ourselves, but if we can go all the way and help the Scarlets at the same time, it would be an added bonus."
Welsh players and management joined Deputy Minister for Sport Ken Skates at the Pierhead Building, Cardiff Bay earlier this week to reveal the Union's pioneering school-club hub initiative has been so successful the project will now almost double the scale of the original project.
The Scarlets, Newport Gwent Dragons, Cardiff Blues and the Ospreys look ahead to Judgement Day III which sees the Blues take on the Ospreys (2.30) and the Dragons tackle the Scarlets (4.45pm) at the Millennium Stadium tomorrow afternoon.
Ystradgynlais and Ynysddu played out a titanic struggle at Taffs Well in the SSE SWALEC Bowl semi-final. At the end of the game neither team could be separated after a 15-15 stalemate but Ystradgynlais go through on try count.
Blues strike first in JD III battle - Newport Gwent Dragons lock Andrew Coombs, WRU referee Dylan Llyr Jones and Cardiff Blues hooker Matthew Rees decide dressing room allocations for Judgement Day III
Wales Under 18 captain Calum Haggett has received a conditional offer to read Biomedical Science at St Anne's College, Oxford. WRU chairman Gareth Davies went to meet Calum and Coleg y Cymoedd Principal Judith Evans to wish him luck in his exams and pass on some of his personal experience.
Dodgy tattoos, carthorses, Avatar and soft chins are revealed by Wales Sevens players Tom Williams and Sam Cross as they profile the Wales Sevens squad taking part in Hong Kong this weekend in the latest round of the HSBC Sevens World Series.