Three more people linked to the Australian Open have tested positive for coronavirus in Victoria.
Emergency Services Minister Lisa Neville confirmed the new cases had been detected on Wednesday morning, meaning they would be included in Thursday's figures.
She said authorities are "very confident" one of the cases is a tennis player who is shedding the virus and is not infectious.
The player is already in hard lockdown as they were on board a flight into Melbourne with another positive case.
The other two cases are a player and their support person.
The duo and their close contacts are isolating while the test results are confirmed.
Three other COVID-19 cases were confirmed in hotel quarantine on Wednesday, two returned travellers and one linked to the Australian Open.
It brings the total number of positive cases linked to the tournament to 10.
A total of 72 players remain in hard lockdown after being deemed close contacts of positive cases on three charter flights into Melbourne from Abu Dhabi, Doha and Los Angeles.
Australian Open director Craig Tiley said 3200 tests have been conducted on the more than 1200 players, support staff and tournament officials.
"We're in our sixth day and so far the numbers have been extremely low and if they are active cases they go straight to the medi-hotel," he told ABC News.
Mr Tiley rebuked a "minority" of players who continue to complain about the conditions in hotel quarantine on social media.
"Culturally there's a different approach to how the virus is managed," he said.
"We're proud here in Victoria and Australia of how we have done it and protected the community like we have. We're going to continue to do that."
Ms Neville agreed a handful of players were "making a lot of noise".
Asked about footage shared by Kazakh tennis player Yulia Putintseva of a mouse in her hotel room, the minister replied: "I think there may have been some feeding going on".
"I just encourage them to minimise interaction with the mice, we will keep doing pest control if we need to," Ms Neville said.
Meanwhile, a woman who lives next door to an Australian Open hotel has complained about finding used PPE in her apartment foyer.
Sarah, who lives next door to the View hotel on St Kilda Rd, told the ABC used face masks and gloves had blown into her apartment from overflowing biohazard bins.
"If something quite basic like rubbish is not really being managed efficiently, or sort of dealt with any kind of urgency, that there might be other measures that aren't really being taken seriously," Sarah, who did not give her surname, told ABC Radio Melbourne.
A COVID-19 Quarantine Victoria spokeswoman said biohazard bins are stored and collected from the secure basement car park of the hotel with "no public access".
"This measure ensures the bins are safely collected within a secure environment to reduce any risk to public health," she said.
"We are reviewing CCTV of the street to find the source of the discarded PPE and will take any appropriate action necessary."
Ms Neville was adamant the PPE was not from the hotel.
"I can assure people and ensure the residents there that this is not PPE from the CQV program," she said.
Victoria has recorded no locally acquired coronavirus cases for two weeks, with 19,810 test results processed in the past 24 hours.
There are 34 active COVID-19 cases in the state, no increase on Tuesday.
