World No 1-ranked Ash Barty announces shock retirement from tennis at 25

World No. 1-ranked Ash Barty has announced her retirement from tennis at the age of 25.

Barty said in an emotional video posted Wednesday on social media: “I wasn’t quite sure of how I was gonna do this … it’s hard to say … I’m so happy and I’m so ready. I just know at the moment in my heart for me as a person this is right

The announcement comes less than two months after she won her home Australian Open, her third Grand Slam singles title.