Sydney - Rain prevented any singles matches being finished on a frustrating day at the Sydney International on Thursday, leaving a stockpile of matches to be completed.
The four men's quarter-final matches and the two women's semi-finals were suspended until Friday after frequent fruitless attempts to get through the day's programme.
Some of the men's players will be doubling up on Friday with Australian top seed Bernard Tomic starting the day against Russian Teymuraz Gabashvili.
Quarter-final winners will also have to play their semi-finals on Friday, as the men's final is scheduled for Saturday.
When play was suspended due to rain, third seed and defending champion Viktor Troicki was locked at 2-2 in the first set against Nicolas Mahut, fourth seed Grigor Dimitrov was leading Alexandr Dolgopolov 4-6, 6-3, 4-2 and Gilles Muller had taken the first set 7-6 (7/5) against sixth seed Jeremy Chardy.
Tournament organisers attempted to complete both women's semi-finals in the evening only for rain to again stymie proceedings.
Romania's top seed Simona Halep was leading Svetlana Kuznetsova 5-4, while Puerto Rican qualifier Monica Puig had raced to a 4-0 lead over eighth seed Belinda Bencic before rain again intervened for the final time.
The women will return to the court on Friday to complete their semi-finals ahead of the scheduled final that evening.