Osaka, Williams crash out, Djokovic continues journey at French Open

Czech Republic's Katerina Siniakova serves during the women's singles third round match against Japan's Naomi Osaka at French Open tennis tournament 2019 at Roland Garros, in Paris, France on June 1, 2019. Katerina Siniakova won 2-0. (Xinhua/Gao Jing)