“I feel abandoned because I don’t have training equipment which I requested five days ago, I haven’t been told which type of the virus I have, I’ve had no information from the tournament,” she told Spanish newspaper Marca on Monday.

Australian Open organisers did not immediately respond to a request for comment.

Badosa, who said she had been suffering from anxiety and claustrophobia, has been limited to doing sit ups in her hotel room and using water bottles as weights to try to stay in shape.

The 23-year-old added that the room, which she is sharing with coach Javier Marti, was not suitable for an elite athlete.

“It’s far and away the worst experience of my career,” Badosa said.

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“The conditions here are lamentable, I wasn’t expecting that. The number one thing people recommend when you have the virus is to open the windows to let in air, but I don’t have windows in my hotel room and it’s barely 15 metres square.“

“I have lost a lot of my fitness levels, especially my strength. If I can come out on January 31 I’ll have a week to get in shape. If it’s February 5 it’ll be impossible to recover in time [for the tournament],” Badosa said.

The Spaniard, arrived in Melbourne after playing in Abu Dhabi earlier this month and was on her seventh day in quarantine when her test came back positive.

Seventy-two players have been confined to hotel rooms for two weeks after passengers on three charter flights taking them to Australia had tested positive.