Wales U20 head coach Jason Strange has made just one change and two positional to the side that clinched the U20 Six Nations Grand Slam by beating Italy 35-6 at Colwyn Bay in March.
Ospreys wing Tom Williams, returning to full fitness, earns his first Wales U20 cap for Wales’ World Rugby U20 Championship opener against Ireland. He starts on the right wing with Joe Thomas moving to outside centre in place of Owen Watkin and Harri Millard switching to inside centre.
On the bench, Liam Belcher, Seb Davies and Josh Macleod also return to full fitness to take up places in the matchday 23, Macleod set to earn his first Wales U20 cap if he comes off the bench.
Strange said: “We are pleased to be able to have such consistency in our selection from our Six Nations campaign. We’ve had a great period of training and preparation and the players are now really looking forward to their first match tomorrow.
“We know it will take a real team effort to do well against Ireland. After beating them in Dublin, they produced some impressive performances to beat England away and Scotland at home. We are focussing on our strengths and on our own performance. We know that if we play to the best of our ability and we stick to our principles of playing attractive rugby, we will be a competitive force.
“We have been working hard to keep making small improvements and our togetherness as a squad has continued to grow. We want to express that and keep the excitement going on the pitch starting with tomorrow’s match.
"Our aim is to stay focussed on our performance and on being the best we can be.”
Wales U20: 15 Rhun Williams, 14 Tom Williams, 13 Joe Thomas, 12 Harri Millard, 11 Keelan Giles, 10 Daniel Jones, 9 Reuben Morgan-Williams, 8 Harrison Keddie, 7 Shaun Evans, 6 Tom Phillips (c), 5 Adam Beard, 4 Shane Lewis-Hughes, 3 Dillon Lewis, 2 Dafydd Hughes, 1 Corey Domachowski
Replacements: 16 Liam Belcher, 17 Rhys Fawcett, 18 Leon Brown, 19 Seb Davies, 20 Josh Macleod, 21 Declan Smith, 22 Jarrod Evans, 23 Billy McBryde
Date: Tuesday, June 7
Venue: AJ Bell Stadium, Salford
Kick-off: 17:30 BST (16:30 GMT)