Plans for the 2021 Australian Open are close to being finalised, tournament director Craig Tiley said.
Next year's Australian Open is set to be delayed by a week or two.
Amid reports the Australian Open could start as late as April, organisers are still planning for the summer.
The 2021 Australian Open is set to be held in a "bubble" amid the coronavirus pandemic.
Amid uncertainty due to COVID-19, the Victorian government remains confident about the 2021 Australian Open.
Aryna Sabalenka and Elise Mertens won the doubles in Ostrava together but only the former was celebrating after they met in the Linz final.
Serena Williams won her first main-draw match on this day 23 years ago. It has been some career since.
World number two Simona Halep is isolating at home after returning a positive test for COVID-19.
The first final between players from Belarus on the WTA Tour lasted just 68 minutes, Aryna Sabalenka losing just four games.
Victoria Azarenka has won 21 of her 39 career finals so far, and she starts as favourite for the Ostrava Open title match.