Nadal, Federer reach men's singles third round, Bertens out of French Open

Duan Yingying (L) and Zheng Saisai of China compete during the women's doubles first round match with Shuko Aoyama of Japan and Lidziya Marozava of Belarus at French Open tennis tournament 2019 at Roland Garros, in Paris, France on May 29, 2019. (Xinhua/Han Yan)