Australian Open officials have again been forced to delay the start of qualifying matches as they wait for smoke from the Victorian bushfires hanging over Melbourne to clear sufficiently.
The first matches on court on Wednesday won't be until at least 1pm, three hours later than the original start time and practice has been suspended until 11am.
Conditions at Melbourne Park are being constantly monitored and further decisions will be made using the onsite data and in close consultation with our medical team, @BOM_au and scientists from @EPA_Victoria.— #AusOpen (@AustralianOpen) January 14, 2020
Conditions at Melbourne Park aren't forecast to improve until late on Wednesday, after it plagued the opening day's play when organisers were heavily criticised for allowing matches to proceed.
Officials said onsite monitoring showed conditions on Wednesday morning were similar to those on Tuesday morning.
A number of players complained on Tuesday, including Australian Bernard Tomic, who sought medical treatment during his first round loss when he struggled to breathe.
Slovenia's Dalila Jakupovic feared she would pass out before retiring from her match when she collapsed to her knees with a coughing fit.
A tennis player who "couldn't breathe" collapsed with a coughing fit on court as smoke from bushfires affected the Australian Open.— Sky News (@SkyNews) January 14, 2020
Slovenian player Dalila Jakupovic was forced to retire from her qualifying match and was helped from the court.
Read more: https://t.co/g6xjolDG9g pic.twitter.com/p8wZyrGB5E
Health authorities expect the air quality to bounce between the "very poor to hazardous range" until at least Wednesday afternoon, with a top temperature of 34C before a late change that's set to bring rain.
Tennis Australia said it will continue to work with its medical team, the Bureau of Meterology and Environment Protection Authority Victoria scientists when making decisions about whether it's safe to play.
TA said it has installed measuring devices on-site for air quality, with play cleared to continue during the opening round of qualifying.
Qualifying top seed Dennis Novak from Austria will be in action against German Dustin Brown, while a number of local hopes take to the court on day two.
Among the Australian women, Kaylah McPhee will face Belarussian Greet Minnen while Jamie Fourlis meets Fang Yin Xun from China.
Olivia Rogowska and Storm Standers are also scheduled for first-round action.
In the men's draw, Akira Santillan will play Frenchman Quentin Halys while Sydney teen Rinky Hijikata has a tough first-up encounter against second-seeded Swiss Henri Laaksonen.
Australia is already guaranteed 18 players in the singles main draws, led by women's world No.1 Ashleigh Barty, with play getting underway on Monday.
© AAP 2020