The Australians have rallied after a shaky start to start Sydney with a 28-12 victory over Brazil.The hosts found themselves locked at 7-all with the South Americans after Thalia Costa raced away to answer Bienne Terita's early try.HSBC SYDNEY SEVENS TICKET FINAL RELEASE: GET YOUR TICKETS TO RUGBY’S BIGGEST PARTY NOW!However, Terita's second and tries to Madison Ashby and Teagan Levi helped seal the result despite the below-standard performance.“It was good to get the win but it wasn’t the greatest performance,” Walsh admits.“We were falling off tackles, they looked heavy. I think the emotion and excitement of it made them tighten up but it was a good hit-out.“We had to work hard at times and show some desire to chase them back. It’s a good way to start and hopefully we can build from that.“It’s game one and we want to keep building into the tournament so I’m not concerned.” Terita got the Triple-Crown winners off to a flyer, catching the Brazil defence sliding before sprinting away inside 60 seconds.Brazil refused to give up and enjoyed their own periods of dominance in the first half, capped off by a try to Thalia Costa.The hosts kept their heads and despite several uncharacteristic mistakes found themselves in front 14-7 at the break after Madison Ashby sliced through a gaping hole.In a wild start to the second half, a superb try-saver from Maddison Levi stopped a certain five-pointer to Costa, before Terita’s second left everyone out on their feet.The injection of fresh bodies helped close out the game, with Teagan Levi diving over after a Charlotte Caslick break to close out the match."The nerves showed in that game but it was good to get it out of the way," Ashby believes."I think our defence was a little iffy, we talked about going low and we didn't but it's good to get that out of the way and get off to a good start."Australia 28 (TRIES: Terita, Ashby, T. Levi; CONS: Williams 3, Du Toit) def Brazil 12 (TRIES: Costa, de Souza; CONS: Campos)Click Here: offaly gaa jerseys