Naomi Osaka already making history as the first Japanese woman to made it to the finals of any tennis Grand Slam–and on Saturday afternoon, she beat Serena Williams in straight sets to win the tournament, her first Grand Slam title! (It's not technically their first meeting, or their first match, but it's the first time they've played against each other in a Grand Slam. )

A professional player since 2013, she beat the then-U.S. Open's defending champion Angelique Kerber last year in the first round of the competition in 2017 and caught the world's attention. In the past year, she's won matches against the likes of former no. 1's Maria Sharapova and Karolína Plíšková, and tennis' current world no. 1, Simona Halep. She is currently #19 in the Women's Tennis Association women's ranking.

Here's everything you need to know about the rising tennis superstar/new kid on the court.

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1. She's only 20 years old.

Naomi Osaka was born in Osaka, Japan in October 1997. She signed on with the Japanese Tennis Association in September 2013 when she was 16 years old, at which point she began playing professionally.

2. She may be officially representing Japan, but she's also repping Haiti.

Osaka is a Japanese-American dual citizen—she has a Japanese mother and a Haitian father. She grew up in New York, and now lives with her family in Florida, where she trains. But she's mentioned several times that she's proud to represent not only Japan, but also Haiti.

At the Australian Open in January, where she defeated Aussie favorite Ashleigh Barty, she said in an interview, "of course, I am really honored to be playing for Japan. And my dad’s side is Haitian. So…represent!"

3. She understands, but can't speak Japanese. She's working on it, though!

At a press conference after she won the Australian Open, she was surprised when her handler asked for questions in Japanese. Osaka isn't fluent, but according to Racquet, "Her comprehension is good, and her speech is getting better." Her off-season goal is to the study the language.

4. Her sister is her doubles partner.

Mari Osaka, Naomi's older sister, is also a pro-tennis player who also represents Japan. The two have competed alongside each other as doubles partners—and yes, this has led to many a (lazy) comparison to Venus and Serena Williams.

In an interview with GQ, Osaka acknowledged that she's grateful for being able to travel because of her career, but added that she misses her sister a lot while on the tennis circuit. So they FaceTime regularly! And right after winning the Indian Wells Masters, the annual tennis tournament held in March at the Indian Wells Tennis Garden in California, she was actually seen calling her sister.

5. She's got an EXTREMELY powerful serve.

At the 2016 U.S. Open, Osaka's serve hit a record with the speed of 125 mph—a speed that only nine female tennis players in history have ever topped. Her forehand is also quite strong at 100 mph.

6. She's a total Pokemon nerd!

During one of her press conferences, a reporter asked about her goals and ambitions. She gave THE BEST answer—that she wanted "to be the very best that no one ever was." She then had to explain to the confused room of journalists, "That's a Pokemon quote, I'm sorry. That's the Pokemon theme song. But, yeah, to be the very best, and go as far as I can go."

Oh, and she's also into video games—especially Overwatch.

7. And she's also very into memes.

When she won at Indian Wells this year, she described the feeling of winning afterwards with a meme."Towards the end I didn’t know that I won the match point," she said. "So then I was like Caveman SpongeBob."

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8. She considers her match with Serena her "dream match."

"When I was a little kid I always dreamed I would play Serena in a Grand Slam final," Osaka once told the BBC. "At the same time I feel like even though I should enjoy this moment, I should still think of it as another match."

She told The New York Times earlier this year that her mantra is simply, "what would Serena do?" The upcoming match with her idol, she added, is her "dream match."

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And in her latest interview after getting through to the finals, she only had three words for Serena: "I love you."

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9. This isn't the first time she's facing Serena Williams in the court.

Back in March, the young player already faced Serena at the Miami Open. And she won, FYI. But this was just after Serena literally almost died giving birth to baby Olympia.

When asked about her match, Naomi told reporters, "Sometimes she plays matches where she doesn’t say ‘come on’ at all." (That's a reference to Serena's habit of dropping the phrase as a motivator in key moments during matches.) "And that’s a little bit sad, because it’s like, 'Do you think she’s trying?'" she continued. "I just wanted her to say ‘come on’ once because then I knew maybe she would be trying a little bit. So once I heard the first ‘come on,’ I was like, Yeah!"

Williams, meanwhile, told reporters back in 2016 that she's seen Osaka play. "She's really young and really aggressive," she said. "She's a really good, talented player. Very dangerous."

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10. Also, her family has a dog named Panda.

Panda, the Osakas' black and white female pup, is super adorable! Just look at that face clearly asking for a belly rub!

Jasmine Ting Jasmine is a journalist struggling to adult by day...

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