The 19-year-old from New South Wales is currently ranked 1171 in the world and has a little more than $3500 in career earnings to her name.
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Graovac is a regular on the second-tier ITF Tour but has struggled to break onto the WTA Tour since making her professional tennis debut in 2018.
The Aussie teen has more than 16,000 followers on Instagram, with OnlyFans estimated to have an audience of some 24 million subscribers.
However after the media attention last week, Graovac appeared to respond to the critics with two messages on her Instagram.
“There is too much negativity in the world, do your best to make sure you aren’t contributing to it,” she wrote.
Before adding: “Be so busy improving yourself that you have no time to criticise others”.
Graovac posted photos of her posing in London to accompany the captions.
OnlyFans is a website where users charge fans a subscription fee - usually in exchange for X-rated content.
Sport stars appear on OnlyFans
She's not the first Aussie tennis star to appear on OnlyFans, with Bernard Tomic making a cameo appearance on the service earlier in the year.
Tomic shocked fans after appearing in a video on the adult website of his girlfriend Vanessa Sierra.
The Aussie tennis player went public with his relationship with Sierra - a former contestant on reality TV show Love Island - in November.
Perhaps the most famous Aussie sporting identity to turn to OnlyFans is former Supercars driver Renee Gracie, who has made a lucrative career switch to the adult entertainment industry.
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