Naomi Osaka

is a professional tennis player. She won the 2018 US Open, defeating American Serena Williams in the final. This made her the first Japanese player to win a Grand Slam singles tournament. In 2019 she won the Australian Open and became world number 1. She turned professional in September 2013.
Osaka is Haitian-American-Japanese. She was born in Chūō-ku, Osaka. Her father is Haitian-American and her mother is Japanese. She grew up in the United States. She has both Japanese and American citizenship.