Former world number one Caroline Wozniacki will retire after the Australian Open to focus on different challenges in life, including starting a family.
The Dane, who won the Australian Open in 2018, is only 29 and does not turn 30 until July next year.
But she has decided Melbourne, the scene of her greatest career triumph, will also be the scene of her final act.
A year later she climbed to world number one for the first time but a slam title remained elusive until last January, when she defeated Simona Halep in the final in Melbourne.
That victory saw her return to the top of the rankings but she only stayed there for four weeks and at the end of the season she revealed she had been diagnosed with rheumatoid arthritis.
Last season was a struggle, with Wozniacki failing to win a title for the first time since 2007 and sliding to 37th in the rankings.
A popular player with peers and fans, the Dane, who won 30 singles titles, will be remembered as one of the foremost names of her generation.