Centre Rheon James and winger Ross Jones take the places of Adam Warren and Harry Robinson who were ruled out with a hamstring and ankle ligament injury.

Jones – who played for Ireland Under-18s – would make his debut in the tournament in Italy along with fellow new boys Iolo Evans, Dale Ford and Lewis Robling.

First up for Wales are Argentina before they face the unenviable task of taking on the Baby Blacks who have never tasted defeat in the JWC.

But Webster insists his charges are up to the challenge of getting out of their pool.

He said: “I’ve been thrilled with the attitude of the boys. They’ve been going that extra yard in training and we are all raring to go now with our first match on Friday.

“The Argentina game is massive for us and will go a long way to determining how we do in the tournament.

“I’m sure they’ll have a big pack mentality which we will need to front up to that and then hopefully move them about a bit.

“New Zealand have never lost a Junior World Championship game so we will have it all to do. That said, we will do our utmost to cause an upset or at least get something out of the game in order to have a good chance of reaching the last four.

“The Junior World Championship is an intense competition with five matches in 16 days and it will give the players an great insight into what it takes to become a professional rugby player.

“It’s going to be tough but we have a good mix of talent throughout the squad, and we will make sure we fly the Welsh flag with pride.”