Andy Murray tests positive for COVID-19 before Australian Open

The American no. 2 shared the health update on her social media channels on Thursday evening.

Sandgren later tweeted to clarify: "My two tests were less than (eight) weeks (apart). I was sick in November, totally healthy now", Sandgren tweeted.

The American, who has twice reached the round of 16 at the Australian Open but never beyond, says he is still committed to the sport, and hopes to play a full season once the tour resumes after the Australian Open.

Andy Murray's participation at the Australian Open is in doubt following a positive COVID-19 test.

Tennis Australia said players were only allowed into Australia with proof of a negative Covid-19 test prior to departure, or with approval as a recovered case at the discretion of the Australian government. "Upon completion of that review he was cleared to fly", read the statement.

The former Australian Open quarter-finalist was deemed to be no longer contagious and a case of viral shedding, having been struck down with COVID-19 in November.

On Wednesday, almost 12,000 kilometers (7,500 miles) from Melbourne, the qualifying tournament was completed for the tournament, with 16 men and 16 women set to join the singles main draw.

The qualifying tournament for the Grand Slam event took place in Qatar.

Those playing in this year's Australian Open must complete a two-week quarantine upon landing in the country.

Jones has ectrodactyly ectodermal dysplasia, which means she was born with three fingers and a thumb on each hand, three toes on her right foot and four toes on her left.

The players, who will be allowed to spend five hours outside their rooms during quarantine for training purposes, will then play warm-up events at Melbourne Park from January 31 before the Australian Open starts on February 8.

Six women and six men will also travel to Australia as lucky losers and undergo mandatory quarantine like the rest of the worldwide players, hoping to get a place in the main draw as cover for injuries or withdrawals.

"Players and their teams are tested every day from their arrivals in Australia, a much stricter process than for anyone else in hotel quarantine".

Keys also added that she wasn't hoping to wait to find out if she could travel late to Australia and get a chance to play the first Major of the year.

Novak Djokovic is the defending men's champion and Sofia Kenin is the women's defending champion.