The top-seeded nation among the 18 that entered the US$10 million event got off to a blazing start with big-hitting Hurkacz easing past Zhang Zhizhen 6-3, 6-4.

Swiatek then fought back from 2-0 down in the first set to beat Zheng Qinwen 6-2, 6-3 and make it three successive singles victories in the event which the world No 1 is using to prepare for this month’s Australian Open.

Poland will now travel to Sydney to play in the semifinals, where they will be joined by Serbia or Australia, who meet in the day’s other quarterfinal clash in Perth.

World No 1 Novak Djokovic, who was hampered by a wrist issue during Serbia’s win over Czech Republic yesterday, is set to face Alex de Minaur in the singles opener.

Caroline Garcia and Adrian Mannarino guided France into the quarterfinals with a 2-0 win over Italy.

World No 20 Garcia beat Jasmine Paolini 6-4, 5-7, 6-4 after Mannarino beat Lorenzo Sonego 6-4, 6-4 in the Group D tie.

Later today, Greece meet Canada in Group B with Australian Open runner-up Stefanos Tsitsipas scheduled to play his first singles match of the season.

The Australian Open runs from Jan 14 to Jan 28.