After her French Open triumph in 2008, the world appeared to be at Ana Ivanovic's feet.
Ivanovic confirmed several recent injuries are the reason for her decision to call time on a 13-year professional career which peaked with victory at Roland Garros in 2008, the year she reached the summit of the women's rankings.
"I can only play on if I can perform to my own high standards, and I can no longer do that, so it is time to move on".
Ana Ivanovic announced her retirement from professional tennis, effective immediately, via a live Facebook video.
When she won her first Grand Slam title at the age of 20, in Paris in 2008, becoming the world No. 1 as a result, it was seen as a breakthrough for a star who would go on to win many more titles.
Ana Ivanovic was a finalist at Roland Garros in 2007 and the Australian Open in 2008.
"It has been a hard decision but I have so much to celebrate", Ivanovic added. One of her greatest achievements was the way she fought back to win back her place in the world's top 10 in 2014 after several years of struggle.
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Before announcing her retirement, she had kept her fans guessing, asking them to tune into her Facebook account on Wednesday evening as she has to "reveal" what she describes as an "important" news.
"But seeing those highs demands top physical form and it's well-known that I have been hampered by injuries". Her final Grand Slam appearance came at Flushing Meadows in September, when she claimed that she would not be retiring despite suffering another US Open first-round exit inside 79 minutes at the hands of Denisa Allertova.
She was always delightful company away from the court when the cameras and microphones were turned off, but you sometimes wondered whether the perennial problems she suffered with her ball toss were evidence of some inner turmoil whenever she was under the spotlight.
The 29-year-old said she would instead focus on becoming an ambassador for the sport as well as work in the fashion industry.
Ivanovic added she would not be "disappearing completely from the (WTA Tour) circuit" and was "excited about the new challenges and the new path ahead of me".
"Beyond that, who knows? My love and my greatest thank you to all of you", she said.
"I have lived my dreams and I really hope to help others do so as well, so don't be sad".