Ireland survived a volatile opening match in the inaugural Nations Championship, securing a 33-31 victory over Australia in Sydney. Andy Farrell's side overcame a depleted roster, missing 12 players including captain Caelan Doris and fly-half Jack Crowley. Despite these absences, the visitors managed to steal the win after a high-scoring first half that saw seven total tries.

Australia dominated early stretches, leading by 12 points after tries from Dylan Pietsch, Jock Campbell, Josh Canham, and Ryan Lonergan. Ireland fought back through scores from Cian Prendergast, Josh van der Flier, and Jamison Gibson-Park. The lead swapped multiple times in the second half, with Hugo Keenan scoring early before Tate Mc Dermott restored the Wallabies' advantage.

Drama peaked in the final minutes when prop Tom Clarkson forced his way over the line in the 77th minute to put Ireland ahead. Australia had one last chance to win, but replacement fly-half Ben Donaldson missed a penalty from over 50 metres. This result gives Ireland momentum as they prepare to face Japan in Newcastle.