Australian Men's Sevens coach Andy Friend believes his side's belief in their defensive system was the catalyst for a breakthrough World Series Sevens victory in Sydney over the weekend, the side's first on home soil since 2002. After topping their pool with three wins over USA, Canada and Scotland, Australia defeated rivals New Zealand and an in form Argentinian side to book a spot in the final against South Africa. Looking for their first World Series tournament victory since 2012, the home side produced their best performance in recent memory, scoring five unanswered tries to claim a 29-0 victory over the Blitzboks in front of a vocal Australian crowd. "We've got quite an aggressive defensive system and throughout the course of the weekend on occasions we haven't believed in it. We showed a couple of clips this morning and just said, 'Listen, do we really believe in this?' and the boys were like, 'Yeah, actually we do'," Friend said after the victory. "I said, 'well if