There are many ways to measure Maria Sharapova's success: five grand slam titles, 36 career wins, a former No. 1 ranking in the world.
But those impressive achievements don't match up with the success she accumulated in her bank account.
Sharapova, who announced her retirement today at the age of 32, leaves as one of the top-earning athletes in her sport, male or female, and one of the richest female athletes in history.
Her career earnings on the court reached US$38.8 million ($59 million), according to the Women's Tennis Association.
Their winnings stand at US$92.7 million (A$141 million) and US$41.8 million (A$63 million), respectively.
While No. 4 earner Simona Halep, at US$36.5 million (A$55 million), is likely to pass Sharapova soon, she is expected to stay among the top 10 earning women tennis players for the immediate future, given how many top positions on the earnings list are held by retired players.
And tennis is the most lucrative sport for women players.
The top career earner in the Ladies Professional Golf Association history is Annika Sorenstam, who has earned US$22.6 million ($34 million) before she retired 12 years ago.
Sharapova's earnings are also among the top-ever in her sport.
Only five men - Novak Djokovic, Roger Federer, Fafael Nadal, Andy Murray and Pete Sampras - have made more.
But Sharapova did even better off the court, with a large bevy of sponsorship deals.
The biggest deal came, as it does for many athletes, from Nike, with whom she had a deal worth a reported US$70 million (A$106 million) over eight years.
But she also had deals with Porsche, Evian water, Tag Heuer, and Head rackets.
In the past she also had sponsorship deals with Canon and Avon.
And she has started some of her own brands during the course of her career, including Sugarpova candy and Sugargoop, a sunscreen brand which she bought into in 2014.
Forbes estimates that her total earnings, both from winnings, endorsements and appearance money, has come to US$325 million (A$496 million), which puts her just behind Serena Williams' US$350 million (A$534 million) total for No. 2 all time among female athletes.
That flow of sponsorship dollars was almost cut-off in 2016, when she failed a drug test for taking a prescribed medication to treat a magnesium deficiency and irregular EKGs.
Nike and others announced they were suspending their agreements with her when the suspension was announced, even though Nike had stuck with many of the male athletes it had endorsement deals with through more serious legal problems.
But after her suspension was reduced following a finding from the International Tennis Federation found that she "did not intentionally break its rules," most of the sponsors, including Nike, returned.
Sharapova should continue to have a lucrative sponsorship deal even her playing career coming to an end said Bob Dorfman, an endorsement expert and publisher of the Sports Marketers Scouting Report.
"She's done a tremendous job of building up her non-court brand. She obviously has the advantage of being attractive and still a young woman," he said.
"She's built a name for herself. She's personable, likeable. I think she'll have a pretty extensive shelf-life."
Article was reproduced with permission from CNN.
Source: 9News https://www.9news.com.au/world/maria-sharpova-net-worth-tennis-star-announces-retirement/1d872010-6f07-42dc-9dbb-f513fe6c5a7b