10:14 PM ET

Ash Barty, the No. 1-ranked women's tennis player in the world, has announced her retirement from the sport at the age of 25.

Today is difficult and filled with emotion for me as I announce my retirement from tennis, wrote the reigning Australian Open champion in a social media post. I asked my friend Casey to help me share the news with you.

I am thankful for everything this sport has given me and I feel proud and fulfilled. I would like to thank everyone who has supported me along the way, I will always be grateful for the lifelong memories that we created together.

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A post shared by Ash Barty (@ashbarty)

More to come tomorrow at my press conference, she wrote in her caption, after she posted an accompanying video interview with tennis broadcasters.

Less than two months ago, Barty won her third Grand Slam singles title.

• Current world No. 1 • 3-time Grand Slam winner (2019 French Open, 2021 Wimbledon, 2022 Australian Open) • First Australian to win her home major since Chris O'Neil in 1978 • First woman in Open era (since 1968) to win each of her first 3 major final appearances • 15 career singles titles • $23.8M career prize money • 305-102 career singles record

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Thank you for being an incredible ambassador for this sport and for women around the world, said the WTA. We will miss you so much.

Barty became the first Australian woman in 44 years to win the singles title at the Australian Open. It was her first slam win on hard courts after her victories on grass at Wimbledon and on clay at the French Open.

She pulled out of the Indian Wells and Miami Open due to a need for ongoing recovery after winning the first major of the year.

Barty said on March 3 that he had not been able to adequately prepare for Indian Wells and Miami because his body had not recovered from the Australian Open.

I love these events and am sad not to be there competing, but I need to get my body right.

The report was contributed to by the Associated Press.