The Official Online RBS 6 Nations Store is open. The store has everything you need to get behind your team during the RBS 6 Nations, plus the store is now fully stocked with a much wider range of rugby merchandise.
Ireland showed some of the form that helped them beat England and France during the RBS 6 Six Nations, with Leinster scrum-half McGrath at the heart of most of their play against the junior Wallabies.
Rory Scholes scored the only try for Mike Ruddock’s troops while Tom Daly kicked the remaining points on a famous night in Vannes, France.
"I'm very, very proud,” said McGrath. “It was a very tough game, we are absolutely over the moon with the win but it was a bit scrappy out there.
"I think the (hot) conditions played a big part in the game, something we are not used to back in Ireland. The boys stuck in, dug deep and I am delighted with the win.
"We are a very optimistic team, I feel like we need to improve a bit of everything but maybe there are silly kind of 50-50 passes we threw that gave Australia the ball a bit easy and maybe the rucks as well, but I'm sure we will enjoy tonight and get back on the paddock."
Elsewhere, reigning RBS 6 Nations champions England got off to an equally good start by disposing of hosts France 30-6, but captain Jack Clifford claims it was a tougher test than the scoreline suggests.
Prop Luke Cowan-Dickie scored England’s opening try before Clifford racked up two second-half scores to seal the win, with fly-half Henry Slade added 15 points with the boot.
“We knew that this was going to be tough, and that’s how it proved,” said Clifford.
“The scoreline probably doesn’t reflect the match – we were under pressure for long periods and our defence held firm.
“They were much improved from when we played them in the Six Nations so we’re delighted to get the win.”
Wales, who finished third in last year’s World Championship, opener their account with a 42-3 victory over Samoa in Nantes.
Hallam Amos and Jack Dixon crossed for first-half tries with fly-half Sam Davies kicking eight points for a comfortable half-time lead.
Forwards Carwyn Jones, Sion Bennett, Ieuan Jones and Elliot Dee all crossed for Wales in the second period as they took full advantage of a tiring Samoan outfit.
Meanwhile, the side Wales beat to secure third place last time out, Argentina, saw off a resolute Scotland side 44-13 – two fine tries from Jamie Farndale and Mark Bennett the highlight.