Nigel Carolan has made four changes to the starting XV that overcame Argentina for Ireland’s U20 World Championship second-round clash with Scotland on Saturday (kick-off 3.30pm Irish time).

Ciaran Gaffney is named on the wing, having recovered from an ankle injury he picked up before the first game, to partner Stephen Fitzgerald with Billy Dardis at full-back.

There is no change in the centre partnership, with Garry Ringrose and Sam Arnold taking position. Nick McCarthy will captain the side from scrum-half with Joey Carbery named at outhalf.

Tomás Quinlan, whose last-gasp kick sealed an 18-16 victory over Argentina, has to settle for a place on the bench.

Up front, Andrew Porter and Sean McNulty make their first start of the tournament to join Oisin Heffernan in the front row. David O'Connor and Alex Thompson take their position in the second row. Josh Murphy and Lorcan Dow are joined by Conor Oliver in the back row.

"We had a shaky start to the tournament but it's good to have the win under our belt,” said Carolan, who praised his side’s character after the Argentina game, but said they should have been a position where they might have lost the game.

"We narrowly lost to Scotland during the Six Nations this year so we are aware of the challenge ahead of us.  We know we have a tough battle on our hands, but that's what we have prepared for.” 

"We are all looking forward to the game and hopefully we can perform to our potential.”

Ireland’s game against Scotland game will be broadcast on TG4. 
Ireland U20: Billy Dardis;  Ciaran Gaffney, Garry Ringrose, Sam Arnold, Stephen Fitzgerald; Joey Carbery, Nick McCarthy (Capt); Andrew Porter, Sean McNulty, Oisin Heffernan; David O'Connor, Alex Thompson; Josh Murphy, Conor Oliver, Lorcan Dow.

Replacements: Zack McCall, Liam O'Connor, Conan O'Donnell, Jack Dwan, Nick Timoney, Charlie Rock, Tomás Quinlan, Jacob Stockdale.