The Australian Open will be able to open its gates to fans for the last four days of the tournament.
The move comes after the state of Victoria announced that a snap coronavirus lockdown would be lifted at midnight on Wednesday.
Victoria State Premier Dan Andrews announced the lifting of the lockdown but said the crowds allowed into Melbourne Park for the semi-finals and finals of the Grand Slam might be reduced from the originally agreed 25,000 a day.
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"There will be meeting early this afternoon where we go through and work through exactly what is a safe number and that decision will be made as soon as possible," Andrews told reporters.
"They were already reduced, they may have to be reduced a little bit further, but that matter will be resolved in the next few hours."
Tournament organisers said they expected crowds would be back on Thursday.
Fans were shut out of the precincts of Melbourne Park from last Saturday after a small coronavirus outbreak in the city. The state reported no locally acquired coronavirus cases on Wednesday.
Tournament organisers will be desperate for fans to return after spending a huge amount of money to get the tournament up and running, including some £22.3m on putting players through 14 days of quarantine.
Tickets were already available for purchase online on Wednesday morning ahead of the government's announcement, with some seats for Sunday's men's final at Rod Laver Arena still available at A$550 each (£307).
"I assume people have bought those tickets, they assume there would be some risk involved in that given that I have only made these announcements now," Andrews added.
"We're going to finish up with crowds in lots of different places. We're going to finish up with people being able to move freely because this short and sharp circuit-breaker lockdown has worked."
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