Ash Barty has been hailed as one of tennis' "great champions" who inspired "a generation of young people" as tributes poured in for the world number one after she announced her retirement from the sport aged 25.
Barty made the bombshell announcement on social media on Wednesday, saying the time was right to step away from the sport, after winning three Grand Slams, .
Prime Minister Scott Morrison said he wished Barty all the best for her future.
"I want today to say thank you to you Ash, for inspiring a generation of young people, and particularly a generation of young Indigenous people in this country," he told reporters in Rockhampton.
"You are all class ... I am sure anything you turn your hand to, you are going to be a great success.
"None of us will forget her triumphant win in Wimbledon, and now, none of us will ever forget that incredible comeback down there at the Australian Open this year."
Winning the 2021 women's singles title at Wimbledon was a pivotal moment in Ash Barty's career. Credit: Pool/Getty Images
"An inspiration, a magician on the court, a champion of Wimbledon and the Australian Open - world No.1. As you climbed to the very top, you lifted us all," he wrote on Twitter.
"Congratulations to Ash Barty on a magnificent career."
Health Minister Greg Hunt said Barty hit the court with "such amazing drive" and will be "long remembered in Australian sporting history".
Greens leader Adam Bandt described Barty as an "inspiration to many" and would "always be our champion".
"Good luck chasing your next dreams. You deserve it," he said.
Women's Tennis Association chairman and CEO Steve Simon said Barty would be missed.
“With her accomplishments at the Grand Slams, WTA Finals and reaching the pinnacle ranking of No.1 in the world, she has clearly established herself as one the great champions of the WTA," Mr Simon said.
“We wish Ash only the very best and know that she will continue to be a tremendous ambassador for the sport of tennis as she embarks on this new chapter of her life. We will miss her.“
Former men's world number one Andy Murray said he was "happy" for Barty, but "gutted for tennis".
"What a player," he added.
Two-time grand slam champion Petra Kvitova said "tennis would never be the same" without Barty, while former world number one, Romanian star Simona Halep, said she was in tears over the news.
"Ash, what can I say, you know I have tears right?," Halep wrote on twitter.
"My friend, I will miss you on tour. You were different, and special, and we shared some amazing moments. What's next for you? Grand Slam champion in golf?! Be happy and enjoy your life to the max."
'I leave feeling proud and fulfilled': Why Ash Barty retired
A physically and emotionally "spent" Ash Barty revealed she's been wrestling with retirement ever since winning Wimbledon last year.
The three-time grand slam champion — who hasn't played since breaking the 44-year local title drought when she won the Australian Open in January — posted the news on social media.
"Today is difficult and filled with emotion for me as I announce my retirement from tennis," Barty posted on Instagram.
"I am so thankful for everything this sport has given me and leave feeling proud and fulfilled.
"Thank you to everyone who has supported me along the way. I'll always be grateful for the lifelong memories that we created together."
The post was accompanied by a video interview with former Australian tennis star Casey Dellacqua in which Barty more fully explained her decision.
Barty's farewell ranks as Australian sport's most unexpected retirement since Mark Ella — also then 25 — quit rugby union after captaining the Wallabies on their famous grand slam-winning tour of the UK in 1984.
The stunning revelation marks the second time Barty has walked away from tennis, following the Queenslander's 16-month sabbatical - during which she played cricket for the Brisbane Heat in the Women's Big Bash League - after a demoralising first-round loss at the 2014 US Open.
But, unlike then when she was a homesick teenager, this time Barty says she's finished for good.
"I will be retiring from tennis. It's the first time I've said it out loud and it's hard to say but I'm so happy and so ready," she said in the video on Instagram.
"I just know at the moment in my heart for me as a person this is right.
"I've done this before but it's a very different feeling."
Ash Barty plays a forehand return to Danielle Collins of the United States during the women's singles final at the Australian Open tennis championships on Saturday, 29 January 2022, in Melbourne, Australia. Source: AAP, AP / Andy Brownbill
"There was a perspective shift in me in the second phase of my career that my happiness wasn't dependent on the results and success for me is knowing that I've given absolutely everything I can.
"I'm fulfilled, I'm happy and I know how much work it takes to bring the best out of yourself.
"I said it to my team multiple times, 'I don't have it in me any more'. I don't have the physical drive, the emotional want and everything it takes to challenge yourself at the top level any more, and I know that I'm spent.
"I know people may not understand that ... but Ash Barty the person has so many dreams she wants to chase after that don't necessarily involve travelling the world, being away from my family, being away from my home."
Whatever she pursues, Barty's tennis legacy is secure.
Two weeks after winning the 2019 French Open, Barty became the first Australian woman to reach world number one since her mentor and Indigenous idol Evonne Goolagong 43 years earlier.
She followed that up with victory at the 2019 WTA Finals in Shenzhen, China - in doing so pocketing $US6.4 million ($8.6m) — the biggest cheque in tennis history.
Her crowning glory came last year at Wimbledon before Barty defied intense pressure and expectation from home fans to win the Australian Open.
Ash Barty poses for a photograph with the Daphne Akhurst Memorial Cup after winning the women’s singles final of the Australian Open tennis tournament in Melbourne, on Sunday, 30 January 2022. Source: AAP / Dean Lewins
"Wimbledon last year changed a lot for me as a person and for me as an athlete.
"You work so hard your whole life for one goal and I've been able to share that with so many incredible people but to be able to win Wimbledon was my dream.
"The one true dream that I really wanted in tennis. That really changed my perspective and I just had that gut feeling after Wimbledon and had spoken to my team about it."
But after a semi-final and two quarter-final defeats at Melbourne Park, Barty had one more piece of unfinished business to tend to.
"There was a little part of me that wasn't quite satisfied, wasn't quite fulfilled and then came the challenge of the Australian Open and that for me feels like the most perfect way, my perfect way to celebrate what an amazing journey my tennis career has been."
She would have been chasing a career grand slam at this year's US Open in September.
Instead, Barty leaves the sport having held the top ranking for 114 weeks, the eighth-longest tenure in history behind only all-time greats Steffi Graf, Martina Navratilova, Serena Williams, Chris Evert, Martina Hingis, Monica Seles and Justine Henin.
With SBS News.
