New York, United States, 4 September 2013 | tennis.com.au

Ash Barty and Casey Dellacqua will face the biggest test of their US Open campaign so far when they take on second seeds and reigning French Open champions Ekaterina Makarova and Elena Vesnina in the quarterfinals on Wednesday.

The Aussie duo, themselves Australian Open and Wimbledon finalists in 2013, have yet to drop a set in three wins at Flushing Meadows, but will face sterner opposition against the Russians, who also combined for the prestigious Indian Wells title in March.

Barty and Dellacqua are the last remaining Aussies in doubles after John Peers and Scottish partner Jamie Murray fell in three tight sets in their quarterfinal match on Tuesday.

There are also no Australians remaining in singles after Lleyton Hewitt’s sapping five-set defeat to Mikhail Youzhny in then fourth round.

> Hewitt falls to Youzhny in five-set thriller

Yet Aussie Thanasi Kokkinakis remains alive in the boys’ junior singles, and will continue his campaign on Day 10 against 11th seed Nicolas Jarry of Chile.

Pat Cash will also make an appearance on Grandstand in the Champions Doubles event.

Aussies in action on Day 10

WOMEN’S DOUBLES – QUARTERFINALS

Ash Barty (AUS)/Casey Dellacqua (AUS) [8] v Ekaterina Makarova (RUS)/Elena Vesnina (RUS) [2] – Grandstand, second match

BOYS’ SINGLES – SECOND ROUND

Thanasi Kokkinakis (AUS) v Nicolas Jarry (CHI) [11] – Court 13, first match

BOYS’ DOUBLES – SECOND ROUND

Thanasi Kokkinakis (AUS)/Gianluigi Quinzi (ITA) [8] v Luca Corinteli (USA)/Elias Ymer (SWE) – Court 13, third match

MEN’S CHAMPIONS DOUBLES

Pat Cash (AUS)/MaliVai Washington (USA) v Michael Chang (USA)/Todd Martin (USA) – Grandstand, fourth match

Aussies Day 9 results

MEN’S SINGLES – FOURTH ROUND

Mikhail Youzhny (RUS) [21] d Lleyton Hewitt (AUS) 6-3 3-6 6-7(3) 6-4 7-5

MEN’S DOUBLES – QUARTERFINALS

Alexander Peya (AUT)/Bruno Soares (BRA) [2] d Jamie Murray (GBR)/John Peers (AUS) 6-4 6-7(4) 6-4

BOYS’ SINGLES – FIRST ROUND

Thanasi Kokkinakis (AUS) d Naoki Nakagawa (JPN) 6-3 6-3

BOYS’ DOUBLES – FIRST ROUND

Thanasi Kokkinakis (AUS)/Gianluigi Quinzi (ITA) [8] d Mackenzie McDonald (USA)/Guillermo Nunez (CHI) 6-3 6-4

Quentin Halys (FRA)/Frederico Ferreira Silva (POR) d Harry Bourchier (AUS)/Bradley Mousley (AUS) 7-5 6-4

GIRLS’ DOUBLES – FIRST ROUND

Anhelina Kalinina (UKR)/Iryna Shymanovich (BLR) [5] d Naiktha Bains (AUS)/Asiya Dair (KAZ) 6-3 6-1

Barbora Krejcikova (CZE)/Katerina Siniakova (CZE) [1] d Carolina M. Alves (BRA)/Sara Tomic (AUS) 6-2 6-2