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

Zhang Shuai (R) of China and John Peers of Australia celebrate during the mixed doubles first round match with Margot Yerolymos and Gregoire Barrere of France at French Open tennis tournament 2019 at Roland Garros, in Paris, France on May 29, 2019. (Xinhua/Han Yan)