Noel McNamara makes just one change to the Ireland U20s side who are aiming to secure a Grand Slam as they face Wales in Round Five.
After securing the 2019 Championship with a 31-29 win over France last time out, the only adjustment to the starting XV sees Harry Bryne come in at fly-half after missing out last time with a hip flexor injury.
Ben Healy drops to the bench, as the half-back pairing that Ireland kicked off the Championship with is reunited as Craig Casey, who suffered a knee injury against France, is set to start alongside Byrne.
Ireland will field the same starting pack for the fifth game in a row, with loosehead Josh Wycherley starring against the French with two tries in a man-of-the-match performance.
Dylan Tierney-Martin, Thomas Clarkson, Charlie Ryan – who captains the team for the second time – and Niall Murray complete the tight five.
No.8 John Hodnett has flankers Martin Moloney and Scott Penny for company again in a combative back row, while all four provinces are represented on the replacements bench.
Galwegians prop Ryan Lomas is standing by to win his first Ireland U20s cap if called upon.
McNamara said: “It was great to win the title with last week’s win over France, but it’s testament to the players how they’ve parked the victory and are fully focused on what can be achieved in Wales this Friday night.
“They are a really tight-knit group, which I think has been evident in their performances over the last number of weeks.
“They have one final test this week and the group are really relishing the challenge and opportunity that Friday will bring.”
IRELAND UNDER-20s team and replacements (v Wales Under-20s, 2019 Under-20 Six Nations Championship, Zip World Stadium, Parc Eirias, Colwyn Bay, Friday, March 8, kick-off 7.05pm)
15. Jake Flannery (Shannon/Munster) 14. Angus Kernohan (Queen’s University/Ulster) 13. Liam Turner (Dublin University/Leinster) 12. Sean French (Cork Constitution/Munster) 11. Jonathan Wren (Cork Constitution/Munster) 10. Harry Byrne (Lansdowne/Leinster) 9. Craig Casey (Shannon/Munster)
1. Josh Wycherley (Young Munster/Munster) 2. Dylan Tierney-Martin (Corinthians/Connacht) 3. Thomas Clarkson (Dublin University/Leinster) 4. Charlie Ryan (UCD/Leinster) (capt) 5. Niall Murray (Buccaneers/Connacht) 6. Martin Moloney (Old Belvedere/Leinster) 7. Scott Penny (UCD/Leinster) 8. John Hodnett (UCC/Munster)
Replacements:
16. John McKee (Old Belvedere/Leinster) 17. Callum Reid (Banbridge/Ulster) 18. Ryan Lomas (Galwegians/Connacht) 19. Ryan Baird (Dublin University/Leinster) 20. David McCann (Banbridge/Ulster) 21. Cormac Foley (St. Mary’s College/Leinster) 22. Ben Healy (Garryowen/Munster) 23. Rob Russell (Dublin University/Leinster)
