Alec Jenkins was successful as a makeshift goalkicker for Neath against Llandovery.
Neath had to overcome a stubborn Llandovery side before earning their Principality Premiership Play-off final place with a 26-18 victory at the Gnoll.
The Drovers took full advantage of their second bite of the cherry after getting an unexpected chance when Pontypridd were expelled from the competition after fielding an ineligible player against Llandovery.
The Welsh All Blacks were expected to coast to the final but the Drovers took them down to the wire where back rowers Nio Aiono and Dean Fitzgerald impressed alongside front rowers Peter Edwards and Emyr Phillips.
The Drovers gave as good as they got and led 10-6 at the break but the experienced Neath side dug deep in the second spell to edge a thrilling encounter.
Gareth McCarthy and Cerith Rees traded penalties with the Neath pivot edging his side in front with his second success. But the Drovers stung the home side with an excellent try after winger George North caught Rees's chip on the fly and raced clear.
Neath then lost centre Steve Thomas to the sin bin but three minutes after the break both teams were reduced to 14-men when Lloyd Phillips saw yellow.
Nathan Brew shuffled his way over in the corner then Neil Edwards and Josh Turnbull departed the scene with yellow cards.
Alec Jenkins banged over a monster penalty but plucky Llandovery hit back with a Matthew Jacobs try to bring them within a point.
But McCarthy sealed the victory when he slammed the ball on the try-line for a converted try and despite a late rally by the Drovers Neath were the first side to qualify for the inaugural play-off final.
Wales reached their first semi-final since 2013 in the opening round of this season's HSBC World Rugby Sevens Series in Dubai. WRU TV's Graeme Gillespie recaps on what proved to be an eventful tournament
Wales and Ospreys back row James King, who came through the North Wales age grade system, nominated North Wales Regional Community Rugby Manager Marc Roberts, in the WRU's 'Diolch' initiative where squad players thanked those who played a part in their rise to the top.
Beating Merthyr has boosted Carmarthen Quins hopes of reaching a top eight spot in the Principality Premiership. Quins captain Haydn Pugh is delighted with his team's progress and is determined that everyone from the Under 6s through to the senior team, enjoys the ride.
When the Wales squad were asked to nominate individuals who played a big part in their early playing days, Wales and Dragons full back and wing Hallam Amos thought of his former Monmouth School rugby coach John Bevan.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series