Popsugar Health & Fitness Celebrity Fitness Who Is Naomi Osaka? 8 Things You Need to Know About the US Open Sensation Naomi Osaka 6 September 2018 by Tamara Pridgett Image Source: Getty / TPN If you've been following all the action going on at the 2018 US Open (there's a lot) you'll know that Naomi Osaka has been dominating the competition. The 20-year-old has been called the future of women's tennis, and we couldn't agree more. She's currently ranked number 17 in the world, and has beaten some of best tennis players like Serena Williams at the 2018 Miami Open and Maria Sharapova at the BNP Paribas Open. Before she hits the court facing off with Madison Keys in the women's singles semi-finals tonight, here are a few things you should know about the tennis sensation. Related: Serena Williams's US Open Outfit Is Hot — Here Are Her Best Looks Over the Past 16 Years 1 She's of Japanese-Haitian Descent, and Is the First Female Semifinalist to Represent Japan at the US Open Image Source: Getty / Alex Pantling 1 / 8 2 The 20-Year-Old Has a 120-mph Serve and a Powerful Forehand Image Source: Getty / Elsa 2 / 8 3 She Always Has a Hair Tie on Her View this post on Instagram A post shared by Naomi Osaka 大坂なおみ (@naomiosakatennis) on Aug 27, 2018 at 8:58am PDT 3 / 8 4 Her Workouts Are No Joke View this post on Instagram A post shared by Naomi Osaka 大坂なおみ (@naomiosakatennis) on Jul 25, 2018 at 12:53pm PDT 4 / 8 5 Serena Williams Is Her Idol View this post on Instagram A post shared by Naomi Osaka 大坂なおみ (@naomiosakatennis) on Mar 21, 2018 at 3:57pm PDT 5 / 8 6 When She Isn't Playing Tennis, She's Picking Up New Skills Like Sand Surfing View this post on Instagram A post shared by Naomi Osaka 大坂なおみ (@naomiosakatennis) on Feb 23, 2018 at 12:32am PST 6 / 8 7 She Can Also Box View this post on Instagram A post shared by Naomi Osaka 大坂なおみ (@naomiosakatennis) on Oct 26, 2017 at 10:13am PDT 7 / 8 8 She Has a Not-So-Secret Secret Instagram Account Showcasing Her Photography and Travels View this post on Instagram A post shared by Naochi (@nao.chiii) on Jun 5, 2018 at 7:44am PDT 8 / 8 AthletesUS OpenTennis