Naomi Osaka's parents, Leonard Francois and Tamaki Osaka, introduced her to tennis. The couple first met in the '90s when Leonard was visiting Japan as a college student and Tamaki was finishing high school. The pair began dating, but kept their relationship a secret from her family. In her early 20s, Tamaki’s father began encouraging her to consider arranged marriage, according to The New York Times. When she revealed her relationship with Leonard, her father disapproved, leading the couple to relocate to Osaka. Leonard and Tamaki went on to welcome two daughters: Mari in 1996 and Naomi in 1997. When Naomi was 3, the family moved to the United States, where the sisters learned to play tennis. Leonard was inspired by Serena Williams and Venus Williams’ father, Richard Williams, to teach his daughters the sport. Naomi quickly became one of the top tennis stars in the world, winning the US Open in 2018 and 2020 and the Australian Open in 2019 and 2021. In July 2023, she welcomed her daughter Shai — a journey that is intimately documented in Tubi's new documentary Naomi Osaka: The Second Set. The player is now seeking to defend her victories in the 2025 US Open. "Physically, I feel really good," she said during a pre-tournament press conference. "Given we kind of adapt our game plan to who I'm playing, it should be a really interesting tournament.” From overcoming family turmoil to raising a tennis star, here is everything to know about Naomi Osaka's parents, Leonard Francois and Tamaki Osaka. Leonard and Tamaki grew up in different places Leonard was born in Haiti, while Tamaki grew up in Japan. The two cultures have been present in their everyday lives and have been integral in their daughters’ upbringings. "Japanese culture? I kind of love everything about it ... And Haiti, if you’ve ever met a Haitian person, they are really positive, and literally if you’re friends with them, then they will do anything for you,” Naomi said in 2018. “That’s something that is a really good trait, and I’m really happy that my grandparents and my dad’s side of the family is like that." In July 2020, Osaka spoke about her identity again, writing in an essay for Esquire, "As long as I can remember, people have struggled to define me. I've never really fit into one description — but people are so fast to give me a label. Is she Japanese? American? Haitian? Black? Asian? Well, I'm all of these things together at the same time." Leonard and Tamaki met in Japan Osaka's parents first met in Japan when Leonard was a college student and Tamaki was finishing high school. They decided to keep their relationship a secret for years until Tamaki's father attempted to arrange a marriage for her. According to The New York Times, Tamaki's father “erupted in outrage, excoriating her for bringing disgrace on the family,” when he learned of Leonard. Tamaki and Leonard then moved to Osaka together, where their daughters Mari and Naomi were born in 1996 and 1997, respectively. Leonard was inspired by Richard Williams While Leonard did not have any background or experience in tennis, he was inspired by the Williams sisters' father, Richard. He watched the Williams sisters compete in 1999 when his daughters were young. Leonard studied and carefully watched videos to coach Naomi and Mari. He even moved the family to Florida in 2006 in order for them to have more opportunities to train. “The blueprint was already there. I just had to follow it,” he told The New York Times. He also taught the girls how to play the sport on clay courts, just like Richard did with his daughters. "I don't know if there's any little kids out here today, but I was a little kid watching her play," Naomi said after playing Serena at the Australian Open in 2021, per ESPN. "And just to be on the court playing against her, for me, is a dream." They always supported Naomi in her passion Naomi has spoken highly of her parents and their support of her mentally, financially and athletically. "Growing up I dreamed about winning Grand Slams and becoming number one in the world," she explained to PEOPLE in May 2021. "While it was not easy, my family was dedicated to helping me get the access I needed to reach my goals. But unfortunately, not all girls have the same opportunities that I did." Naomi shared that she witnessed her mother work “incredibly hard to support me and my passion for play.” The tennis pro concluded, "She always put others first and encouraged me to embrace my diversity. Every role model I've had has inspired me to dream big. To level up in every way.” Although Naomi has noted that she is very fortunate, she has praised her parents for the extra work that they took on to provide her with such opportunities. “I came from a mom that worked for basically my entire childhood to put me through tennis. My dad, who was with me the entire time. And I knew that they had a really hard time,” she told CBS News in May 2022. “Tennis is an expensive sport. So, just to put two kids through that and just, I guess, believe in them so much is something that — I always call my parents a bit crazy.” Naomi’s parents helped her decide to represent Japan in the Olympics Naomi gave up her United States citizenship in October 2019 in order to represent Japan in the 2021 Summer Olympics. She has previously shared how much she is involved in her home country of Japan’s culture. “We made the decision that Naomi would represent Japan at an early age,” Tamaki said in her daughter’s Netflix docuseries, Naomi Osaka, per Newsweek. “She was born in Osaka and was brought up in a household of Japanese and Haitian culture. Quite simply, Naomi and her sister, Mari, have always felt Japanese, so that was our only rationale. It was never a financially motivated decision nor were we ever swayed either way by any national federation.” Naomi said in the documentary that she has “been playing under the Japan flag” since she was 14 and that it was “never even a secret” that she would play for them. However, she noted that she received some backlash for not playing for the United States. "I don't choose America and suddenly people are like, 'Your Black card is revoked.' And it's like, African American isn't the only Black, you know?" she shared. Her father filled in as Naomi’s coach professionally In 2019, Naomi parted ways with coach Jermaine Jenkins and her father stepped up in the interim to coach her. "He's annoyed me so much that it just makes me angry, and I use the anger as fuel to win," Naomi once said of Leonard, laughing during an October 2019 press conference. She went on to describe her father's coaching style as "simple" and called him "not a very dominating presence." When a reporter asked if Naomi planned to keep Leonard as her coach, the tennis pro responded, "No, deuces. It was good while it lasted." They chose to give their daughters Tamaki's last name "Osaka" is Tamaki’s maiden name, which is also the name of the city that Naomi was born in. It was the family’s decision for both Naomi and Mari to keep their mother’s last name. The New York Times reported that the decision was made because "it was mostly a practical matter when they lived in Japan, helpful for enrolling in schools and renting apartments.” The outlet also reported that the family would speak Japanese while they were at home, eat traditional Japanese food and partake in cultural celebrations. Leonard and Tamaki are grandparents Leonard and Tamaki became grandparents in July 2023 when Naomi welcomed her first child, daughter Shai, with her then-boyfriend, rapper Cordae. "Having a family was my biggest dream. I always wanted to be a mom," the tennis star said in Naomi Osaka: The Second Set. "Some people say [Shai] ended my career, but for me, it feels like she started my career." Tamaki doesn't doubt that Naomi can thrive as both a mom and a superstar on the court. "Just got to keep on working, keep on going. Do it," she told her daughter in the documentary.