Thomas Young will lead Wales Under 18 in their first international of the season, against Scotland at Melrose on Sunday (3.00pm).
The Blues flanker, who was first capped by Wales Under 18 last season, leads his country for the first time at this level after captaining his Region to the WRU Under 18 Regional title earlier in the year.
Head coach Simon King said: "Thomas is certainly a player who leads by example and had some leadership responsibility in our game against Australian Schools XV in December. We have a number of leaders in our group and the intention is to rotate the captaincy during the forthcoming games which make up the Five Nations festival."
Thomas is the son of Cardiff Blues Director of Rugby Dai Young, the former British & Irish Lions and Wales prop.
Tom Prydie was due to have played for Wales Under 18 this weekend, but has stepped up to win his first full cap for Wales. King believes Prydie's elevation to the senior squad can only help inspire
the rest of the squad.
"Tom's involvement with the seniors has obviously been fantastic for his development, and a massive incentive to the rest of our players," he said.
"All of our squad and management wish him well for his international debut on Saturday and we hope to welcome him back into the Wales Under 18 set-up for our remaining matches."
Following this Sunday's game against the Scots, Wales Under 18 take on England at St Helens, Swansea on Sunday, 28 March (2pm), followed by Ireland and Italy at Llandovery on Friday 2nd and Saturday 10 April as part of the Under 18 Five Nations festival (both games will kick off at 2.00pm).
Wales Under 18 v Scotland, Sunday 21 March, 3pm, Melrose RFC
Harley Thompson (Blues); Harry Robinson (Blues), Luke Williams (Scarlets), Sam Campbell (Blues), Eli Walker (Ospreys); Matthew Morgan (Ospreys), Jonathan Evans (Dragons); Rob Evans (Scarlets), Kirby Myhill (Scarlets), Will Griff John (Blues), Cory Hill (Blues), Luke Hamilton (Scarlets), Ellis Jenkins (Blues), Thomas Young (Capt, Blues), Dan Baker (Ospreys)
Replacements:Jack Dando (Blues), Darran Harris (Blues), Samson Lee (Scarlets), Matthew Screech (Blues), Callum Thomas (Blues), Tom Habberfield (Ospreys), Joseff Griffin (Blues), Leighton Bellamore (Dragons)
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.