Ireland head coach Noel McNamara has made two enforced changes to his starting line-up for today’s crunch World Rugby U20 Championship Pool B clash with Australia in Santa Fe, Argentina (2.30pm Irish time).

Size isn’t everything. Generations of Irish forwards have learned that much.

Ireland made it two from two in the the Six Nations U20 Championship after following up their home win over England with a comfortable victory against Scotland at Netherdale last night.