Ash Barty Photo: VCG

World No.1 Ash Barty will return to competitive tennis after a lengthy hiatus due to the COVID-19 pandemic when she headlines two WTA tournaments in Melbourne ahead of the Australian Open, organizers said.

The 24-year-old Queenslander has not played a match since February, opting not to defend her French Open title and also skipping the US Open in New York as the novel coronavirus wreaked havoc on global sport.

The pandemic is still affecting the tennis calendar, with the year's first Grand Slam at Melbourne Park to start on February 8, three weeks later than planned.

Barty, who held on to the top ­women's singles ranking during last year's disrupted season, will play for the first time in 11 months at one of two WTA 500 events from Jan. 31-Feb. 6 as part of the Melbourne Summer Series.

The Gippsland Trophy and Yarra Valley Classic, named after regions in the state of Victoria, will include 49 of the top 50 women players.

The top 32 players will be split across the two events, with each featuring 64-singles and 32-doubles draws.

American Serena Williams, 39, will also return to competitive action after exiting the French Open with an injury and would hope to get some matches under her belt before embarking on her bid for a record-equaling 24th major title.

Players will start arriving Down Under from January 15 and undergo a mandatory 14-day quarantine before playing the warm-up events, which will be held at Melbourne Park.

Top men's players like Australian Open champion Novak Djokovic and world No.2 Rafa Nadal will represent their countries in the 12-team ATP Cup from February 1 to 5 with those unable to make the cut divided into two ATP 250 tournaments.

The Great Ocean Road Open and Murray River Open will feature players including Grand Slam winner Stan Wawrinka and local hope Nick Kyrgios.

"While we know the circumstances are unique this year, it is a huge coup to secure such strong playing fields," Cameron Pearson, head of TA major events, said in a statement.

Earlier this week, the WTA announced a provisional calendar for the women's tour with events lined up until the Wimbledon championships in June-July.

Apart from the three Grand Slams - ­Australian Open (starting February 8), French Open (May 23) and Wimbledon (June 28) - the first half of the year will have four WTA 1000 events in Dubai and Miami (both in March), Madrid (April) and Rome (May).

Other WTA 500 events on the schedule include Doha and Saint Petersburg (March) and Charleston and Stuttgart (April).

The rebranded Fed Cup, now known as the Billie Jean King Cup, is scheduled to start on April 12. However, there is no new date announced for the prestigious BNP Paribas Open tennis tournament in Indian Wells, often called the "fifth major" and usually held in March, which was postponed last week due to ­COVID-19 concerns.

The 2020 edition of the tournament was the first major professional sporting event in the US canceled in the wake of the pandemic, on the eve of its scheduled start.