Facebook Naomi Osaka makes history at the US Open! The 20-year-old becomes Japan’s f… By Laureus - September 8, 2018 Share Facebook Twitter Google+ Pinterest WhatsApp Naomi Osaka makes history at the US Open! The 20-year-old becomes Japan’s first Grand Slam champion! 🇯🇵🏆 Will she clinch a Laureus World Breakthrough of the Year nomination? Source