Barty uncertain of featuring regularly on tour amid COVID-19 pandemic

She skipped last year's U.S. Open and did not defend her 2019 French Open title, opting not to travel due to health concerns amid the pandemic.

Barty will be featuring in the Adelaide International later this week- GETTY IMAGES

Australia's Ash Barty provided no certainty if she will play regularly on the women's tour amid the COVID-19 pandemic despite Naomi Osaka closing in on her world number one ranking.

Barty, who is expected to head to the Middle East next month to play WTA events in Doha and Dubai, said she faced no fitness issues during the Melbourne Park swing despite returning to the circuit after 11 months.

"We plan as best as we can," the 24-year-old told reporters in Adelaide on Monday.

"Obviously in the current situation nothing's certain. It's difficult to plan, without a doubt, but we just go with the advice that we have been given.

"Of course I would love to be back on tour full-time, and all those decisions will come as close as we can to the events, but also as far out to try and plan a schedule and plan a tour," she added.

Barty accepted a wildcard to defend her Adelaide International title this week after making an exit at the quarter-final stage of her home Grand Slam with a defeat to Czech Karolina Muchova.

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The Queenslander skipped last year's U.S. Open and did not defend her 2019 French Open title, opting not to travel due to health concerns amid the pandemic.

Barty did not play for 11 months but has still held on to her top spot as the women's governing body adjusted the WTA rankings due to the pandemic, allowing players the ability to skip tournaments without the fear of losing points.

No extra pressure to preserve number one ranking: Barty

In contrast, Osaka won last year's U.S. Open and the Australian Open on Saturday but still finds herself more than 1,300 points behind the Australian.

"There's no extra pressure. The extra pressure is non-existent for me," Barty said about Osaka's ascent.

"I can't control what anyone else does. For the tournaments or with the rankings, that's out of my control. As for defending points, I think that's a very negative way to look at it," she said.