Hong Kong, 14 October 2015 | AFP

Australian Sam Stosur has won through to the quarterfinals of the Hong Kong Open with yet another victory over Monica Puig.

In other second-round action on Wednesday, sixth seed Daria Gavrilova beat Lara Arruabarrena of Spain 7-6(4) 6-1, joining her compatriot and sometimes practice partner Stosur in the quarters.

Fifth-seeded Stosur accounted for the Puerto Rican 6-4 6-4, her fourth straight-sets win over Puig in four career meetings.

The Australian has set up a last-eight showdown with Britain’s Heather Watson, who’s survived a battle with qualifier Lee Ya-hsuan, winning 6-0 6-7(5) 6-4.

Another Aussie, Anastasia Rodionova, was dismissed 6-0 6-2 by No.4 seed Jelena Jankovic in 59 minutes.

Jankovic will next take on Gavrilova in an all-seeded quarterfinal battle.