Blues South Under 16s moved to the top of the WRU Age Grade Championship courtesy of a 15-7 victory over the Ospreys at Taffs Well.
With three sides chasing the two final places, the South had to win to keep the pressure on the Blues North and the much-fancied Scarlets.
And they achieved that thanks to tries from wing Matthew Roberts and scrum half JB Bruziller and a conversion and penalty from Matthew Tatchell.
The victory leaves the South two points clear of a North side who travel to Ruthin on Sunday lunchtime knowing that nothing less than a bonus point win will be good enough to make sure of their place in next month's final at St Helens.
The South have one game remaining - at Narberth against the Scarlets next week. Victory there will assure them of a place in the final, whilst a win for the Scarlets will leave them needing a win, of any sort, over the Dragons in their final game.
That game was due to be played at Tredegar last night, but was postponed due to an unplayable surface at The Recreation Ground.
Tonight, the Dragons and Scarlets will do battle at Under 18s, again at Tredegar.
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.