Naomi Osaka turned pro in 2013 at age 16.
## When did Naomi Osaka start playing tennis?
Naomi Osaka began playing tennis at age three.
She won her first U.S. Open at 20 years old, beating Serena Williams.
## How many Olympics has Naomi Osaka played in?
Naomi Osaka made her Olympic debut at the 2020 Tokyo Games.
And she had the distinct honor of lighting the flame at the Opening Ceremony.
## How many grand slams has Naomi Osaka won?
Naomi Osaka has won four grand slam titles, including the Australian Open in 2019 and 2021.
She won the U.S. Open in 2018 and 2020, becoming the first Asian woman to be ranked No. 1 in the world.
But Naomi Osaka faced an early departure from Tokyo, after losing in straight sets to Marketa Vondrousova.
## What is Naomi Osaka’s current world ranking?
Naomi Osaka is currently ranked 111th globally, after holding her top ranking for 21 weeks.
So she was overtaken by Australia's Ashleigh Barty.
Naomi Osaka has made over $21.5 million in prize money, according to the Women's Tennis Association.
And in 2020, Forbes announced that she had made $37 million over the previous year, the most of any female athlete in history.
Later that year, she shattered that record and made $60 million between May 2020 and May 2021, according to Forbes.
Naomi Osaka's earnings are a testament to her hard work and dedication to the sport.
But her career is not just about the money - it's about the wins, the titles, and the legacy she's building.
So what's next for Naomi Osaka?
Only time will tell, but one thing is for sure - she'll be back on the court, fighting for more titles and more wins