Defending champions New Zealand are the top seeds in Pool A after winning a third successive series Cup title in Hamilton last weekend, and will face England and Russia again as well as invitational side Japan.
The Black Ferns Sevens welcome back Tenika Willison and Shiray Kaka with Youth Olympic Games gold medallists Risi Pouri-Lane and Mahina Paul given a rest. The series leaders could give another highly-rated young player a debut in Sydney with Jazmin Hotham named as 13th player.
England and Russia have both only made one change each, bringing in their 13th players Jodie Ounsley and Iana Danilova respectively. Japan, hosts of the Tokyo 2020 Olympic Games, will field the two debutants in starting squads in Ayumi Yabuuchi and Wakaba Hara. Honoka Tsutsumi will captain the side in Sydney with their usual leader Chiharu Nakamura the only player with more than 10 events to her name.
Canada could also hand a series debut to a player, having named Asia Hogan as their injury replacement for a squad that shows only one change with Pam Buisa replacing Caroline Crossley.
The runners-up in Hamilton will face the much-improved Fiji and Brazil in Pool B along with neighbours USA, the side they beat 21-17 in the inaugural women’s Cup final in 2017.
USA will see Lauren Doyle become their second player to reach 30 series tournaments after Alev Kelter as coach Chris Brown makes two changes to freshen up his squad following two fifth-place finishes in Cape Town and Hamilton, Joanne Fa’avesi earning her first start of the season and Cheta Emba returning after being an unused 13th player last weekend.
Brazil have brought in teenagers Andressa Alves and Eshyllen Coimbra as they look to build on their performances in Hamilton where the month they had spent together in New Zealand was evident, while Fiji welcome back Pricilla Siata, who last played on the series in Paris in 2018, with Asinate Savu and Raijieli Daveua sidelined. Fiji will also see Rusila Nagasau play her 30th series event, a week after Ana Maria Roqica became her country’s first.
The action gets underway at 10:30 when USA take on Fiji with team playing two matches before completing the pool stages on Sunday with only the pool winners and best runner-up to progress directly to the semi-finals and the others to play-off for places fifth to 12th.