World number one Ash Barty retires aged 25, see pics

Australia's world number one Ash Barty, who retired from professional tennis at the age of 25 on Wednesday.Grand Slam titles: Three (French Open ߣ Wimbledon ߥ Australian Open 2022)

Ash Barty Began playing tennis aged five when parents Robert and Josie introduced her to the sport.

After starting on the professional entry-level ITF circuit in Australia in 2010, she played her first WTA qualifying event at the U.S.

Broke into the top 20 in 2017, clinching her first WTA singles title at Kuala Lumpur as a qualifier. She reached two more singles finals before becoming Australia's number one.

Barty joins Serena Williams as the only active players on the women's tour with majors on all three surfaces.

Barty sealed her first title of 2019 at Miami in March before clinching her maiden Grand Slam at the French Open, beating Czech Marketa Vondrousova in the final to become the first Australian woman player in 46 years to triumph at Roland Garros.

Ash Barty, left, of Australia embraces ex player Casey Dellacqua, who played an important role in her life, after defeating Danielle Collins of the US in the women's singles final at the Australian Open tennis championships. (AP Photo)