With less than a day to kick off, Fiji, Japan, Samoa, France and South Africa have all made changes to their squads ahead of the fourth round of the HSBC World Rugby Sevens Series in Sydney.
The action gets underway on Saturday (GMT +11) with South Africa topping the standings after the last round in Wellington, New Zealand.
Canada and Scotland will also be hoping to build on impressive performances in Wellington while Fiji, who lost to South Africa in the final in Wellington, are still searching for their first tournament win this season.
Captain Osea Kolinisau says his side have recovered well since last weekend: "There's a lot of energy in the team and a lot of laughter around the camp. We're really looking forward to this weekend."
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Meanwhile New Zealand will give debuts to Trael Joass and Andrew Knewstubb in Sydney this weekend.
Isaac Te Tamaki and Tone Ng Shiu will be the travelling reserves, with the rest of the team unchanged from the Wellington tournament last week.
Head Coach Scott Waldrom said: “We learned a lot from Wellington and continue to work on what's required to win in what has become a very tough World Series. Last weekends Fiji quarter-final showed us that if you make a few mistakes you will be punished by the opposition and we can't afford that this weekend with another tough pool.
“Playing Australia first up in front of their home crowd is going to be a big challenge for the team."
The action kicks off on Saturday morning at 9.30 (GMT +11) when Argentina take on USA at the Allianz Stadium in Sydney. Click here for more information.