Pool D captains, including Wales's Scott Andrews, at the Tokyo launch ahead of the tournament kick-off.
Ospreys academy and Aberavon back row Justin Tipuric will lead Wales Under 20 in their opening match of the IRB Junior World Championship, against Tonga in Saga tomorrow (Friday, 11am UK time).
Three players will earn their first Wales Under 20 caps in this game with uncapped trio Llanelli of full-back Daniel Newton, Carmarthen Quins centre Jason Harries and Glamorgan Wanderers scrum-half Lloyd Williams all earning their places in the starting line-up.
Two other uncapped players, Owen Evans of Llandovery and Jamie Davies of Carmarthen Quins, start on the bench.
Squad captain Scott Andrews, Dragons academy outside-half Dai Langdon and Cross Keys scrum half / wing James Leadbeater are unavailable for this game with minor injuries but should all be available for Wales' second game of the championship against Canada on Tuesday. Ospreys academy no 8 Rory Pitman goes straight into the starting line-up after joining up with the squad from New Zealand where he has been playing with Air New Zealand Cup side Taranaki
Wales head coach Phil Davies said, "The boys have worked extremely hard since we arrived in Japan at the end of last week. The new caps have all performed well in training and deserve their opportunity on the field tomorrow. We are confident in these players and hopeful this team will bring us a winning start to the tournament. However, we have five games over 16 days and therefore a 26-man effort is undoubtedly required in order to do well for Wales in this campaign. Rory (Pitman) is in great shape, he has trained well and fitted straight back into the group well, there is no doubt his time in New Zealand has helped him.
"Being in Japan is providing a new cultural experience for the players, alongside the rugby experience. We visited the Atomic Bomb Museum in Nagasaki this week, an unbelievable experience for the players and management."
Wales Under 20 v Tonga, Friday 5 June, 11am UK time (7pm local time):
Daniel Newton (Scarlets academy/ Llanelli); Jamie Loxton (Blues academy / Glamorgan Wanderers), Jason Harries (Carmarthen Quins), Ashley Beck (vice-captain, Ospreys academy / Aberavon), Nick Reynolds (Llanelli); Matthew Jarvis (Ospreys academy / Neath), Lloyd Williams (Blues academy / Glamorgan Wanderers); Aaron Coundley (Dragons academy /Ebbw Vale), Rhys Williams (Blues academy / Pontypridd), Simon Gardiner (Scarlets academy / Llanelli), James King (Ospreys academy / Aberavon), Ashley Sweet (Dragons academy / Cross Keys), Justin Tipuric (capt, Ospreys academy / Aberavon), Rhys Jenkins (Dragons academy / Ebbw Vale), Rory Pitman (Ospreys academy / Bridgend / Taranaki)
Replacements: Owen Evans (Llandovery), Craig Attwell (Dragons academy/ Newbridge), Josh Navidi (Blues academy / Glamorgan Wanderers), James Thomas (Dragons academy / Ebbw Vale), Rhys Downes (Blues academy / Pontypridd), Jamie Davies (Carmarthen Quins), Scott Williams (Scarlets academy / Llanelli), Dan Partridge (Cardiff)
Wales Pool D fixtures (all at Best Amenity Stadium, Saga):
Wales v Tonga, Friday 5 June
Wales v Canada, Tuesday 9 June
Wales v Australia, Saturday 13 June
The Welsh Rugby Union is forming a new Youth Board with a brief to help keep more young people involved in the game during their late teenage years and beyond. The first task of the fifteen strong Board will be to analyse and consider the issues which lead to a number of youngsters drifting away from the sport between the ages of 16 and 21. To apply visit www.wru.wales/youthboard
The Foster's Challenge Cup will involve the 12 Principality Premiership sides and will run during European and British & Irish Cup weeks, providing vital fixtures for the participating clubs and an opportunity for upcoming players to step up to semi-professional rugby and make a claim for starting places within the Premiership squads.
Eighty schools and colleges in Wales now have a full time rugby officer as part of the WRU's school club hub scheme. All of the school club hub officers recently gathered at the National Centre of Excellence for various workshops.
With Liam Williams forced out of the World Cup through injury, lock Luke Charteris and Skills Coach Neil Jenkins say they have to put yesterday's defeat behind them as Wales now look ahead to another physical encounter against South Africa in the quarter-finals of the Rugby World Cup.
WRU Consultant Head of Physical Performance Paul Stridgeon praises the Physical Performance department for their work and dedication as he addresses the media ahead of Wales' Pool A clash against Australia
Twelve young people have been selected to follow a one year WRU Coach Core apprenticeship programme. Coach Core was set up by the Royal Foundation of the Duke and Duchess of Cambridge and Prince Harry as part of the Olympics legacy in 2012 and the Duke of Cambridge was on hand to meet the apprentices on their first day in the job. The programme has been funded by the Hunter Foundation.
The WRU has launched a campaign to create a long term legacy for Welsh club rugby by highlighting the advantages of volunteering. Rhian Edwards, a volunteer at Seven Sisters, has enjoyed many benefits of her volunteering at a grassroots rugby club including being part of the Rugby World Cup volunteer workforce after being nominated by the WRU - and the WRU is asking for more people to develop their 'Welsh rugby roots'.