The Aussie men have added some extra grunt to their lineup in Sydney with Jesse Parahi and Michael Wells coming into the side for this weekend.
Parahi missed the Hamilton leg of the series with a hip flexor injury and his return will be a valuable one on the field and in the leadership stakes as well.
Wells was 13th man in New Zealand but comes into the side along with Parahi, as Sam Myers drops out and Brandon Quinn moves to 13th man.
Ben O’Donnell has shaken off a knee complaint that ended his Hamilton tournament early to be named in the 12, a boost for the Aussies.
Coach Tim Walsh has rewarded Hamilton debutant Josh Coward with a second straight start in Sydney after an impressive outing last weekend.
The defending Sydney champions finished sixth in Hamilton, putting them sixth on the overall World Series standings and Walsh said they had to rectify that in Sydney.
“We don’t have any excuses after Hamilton and we know we have some work ons from day two that we have addressed as a group,” he said.
“For us, we’re not out there to defend the title of last year, but out to attack the challenge of winning the HSBC Sydney 7s and claiming valuable Series points.
“We have Argentina in our opening game and that is where our attention is focused.
“We were pretty tight in defence, but we know that our attack has plenty of improvement, so Saturday is another opportunity to put that into action,”
Australia’s men will have a tough challenge to start their campaign, facing Argentina, Tonga and South Africa in their pool on Saturday.