Testing times: Organizers say Aussie Open will start on time
Spectators walk around Melbourne Park, venue for the Australian Open tennis championships in Melbourne, Australia, Wednesday, Feb. 3, 2021. All competition at six Australian Open tuneup events scheduled for Thursday, feb. 4, 2021 was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19. (AP Photo/Hamish Blair)

Spectators walk around Melbourne Park, venue for the Australian Open tennis championships in Melbourne, Australia, Wednesday, Feb. 3, 2021. All competition at six Australian Open tuneup events scheduled for Thursday, feb. 4, 2021 was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19. (AP Photo/Hamish Blair)

Feb. 03, 2021 06:33 PM EST
A car leaves a COVD-19 testing station in Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19.(AP Photo/Hamish Blair)

A car leaves a COVD-19 testing station in Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19.(AP Photo/Hamish Blair)

Feb. 03, 2021 10:18 PM EST
An Australian Open courtesy car waits outside the Grand Hyatt hotel in central Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19. (AP Photo/Hamish Blair)

An Australian Open courtesy car waits outside the Grand Hyatt hotel in central Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19. (AP Photo/Hamish Blair)

Feb. 03, 2021 06:27 PM EST
A person walks around Melbourne Park, venue for the Australian Open tennis championships in Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19.(AP Photo/Hamish Blair)

A person walks around Melbourne Park, venue for the Australian Open tennis championships in Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19.(AP Photo/Hamish Blair)

Feb. 03, 2021 08:04 PM EST
The Grand Hyatt hotel seen from Melbourne Park, venue for the Australian Open tennis championships in Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19.(AP Photo/Hamish Blair)

The Grand Hyatt hotel seen from Melbourne Park, venue for the Australian Open tennis championships in Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19.(AP Photo/Hamish Blair)

Feb. 03, 2021 08:02 PM EST
Australian Open tournament director Craig Tiley addresses the media in Melbourne, Australia, Thursday, Feb. 4. 2021. All competition at the six Australian Open tuneup events scheduled for Thursday were called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19. (Tennis Australia via AP)

Australian Open tournament director Craig Tiley addresses the media in Melbourne, Australia, Thursday, Feb. 4. 2021. All competition at the six Australian Open tuneup events scheduled for Thursday were called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19. (Tennis Australia via AP)

Feb. 04, 2021 12:51 AM EST
A player practices on an outside court at Melbourne Park, venue for the Australian Open tennis championships in Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19.(AP Photo/Hamish Blair)

A player practices on an outside court at Melbourne Park, venue for the Australian Open tennis championships in Melbourne, Australia, Thursday, Feb. 4, 2021. All competition at six Australian Open tuneup events scheduled for Thursday was called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19.(AP Photo/Hamish Blair)

Feb. 03, 2021 08:05 PM EST
Australian Open tournament director Craig Tiley address the media in Melbourne, Australia, Thursday, Feb. 4. 2021. All competition at the six Australian Open tuneup events scheduled for Thursday were called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19. (Tennis Australia via AP)

Australian Open tournament director Craig Tiley address the media in Melbourne, Australia, Thursday, Feb. 4. 2021. All competition at the six Australian Open tuneup events scheduled for Thursday were called off after a worker at one of the tournaments' Melbourne quarantine hotels tested positive for COVID-19. (Tennis Australia via AP)

Feb. 04, 2021 12:51 AM EST