Naomi Osaka Wins First Tennis Match at Olympics After Lighting Olympic Cauldron

And she's back. Naomi Osaka returned to the court on Sunday in Japan, swiftly defeating China's 52nd-ranked Saisai Zheng in their first-round tennis match at the Tokyo Olympic Games. Osaka, 23, won in two sets, 6-1, 6-4. Sunday marked second-seeded Osaka's first match in two months after she decided to sit out both the French Open and Wimbledon after going public with her mental health struggles.