New York, United States, 3 September 2019 | tennis.com.au

Australian stars Ash Barty and Sam Stosur play back-to-back on Louis Armstrong Stadium on Tuesday, bidding for semifinal places in doubles events at the US Open.

Barty, combining with Victoria Azarenka, will play No.1 seeds Timea Babos and Kristina Mladenovic in the women’s doubles quarterfinals, before Stosur and American partner Rajeev Ram — seeded third — take on Demi Schuurs and Henri Kontinen in the mixed doubles quarters.

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Barty is the defending US Open women’s doubles champion; last year she teamed with Coco Vandeweghe to beat Babos and Mladenovic in a thrilling final.

Elsewhere at Flushing Meadows, four Australian juniors will feature on the Day 9 schedule.

US OPEN DAY 9: full schedule

Rinky Hijikata plays his second-round singles match before combining in doubles with West Australian Tristan Schoolkate, who is also through to the second round of the boys’ singles event.

Compatriots Annerly Poulos and Stefan Storch will also play first-round doubles matches.

Doubles

QF Barty/Azarenka v Babos/Mladenovic Armstrong 4th match

Mixed

QF Stosur/Ram v Schuurs/Kontinen Armstrong 5th match

Junior singles

R2 Rinky Hijikata v [3] Martin Damm Court 17 2nd match

Junior doubles

R1 Storch/Vanshelboim v Pucinelli De Almeida/Rodrigues Court 4 4th match
R1 Poulos/Nugroho v Bartone/Selekhmeteva Court 9 4th match
R1 Hijikata/Schoolkate v Baadi/Svrcina Court 14 4th match