Stan Wawrinka of Switzerland reacts during the men's singles final with Rafael Nadal of Spain at French Open tennis tournament 2017 at Roland Garros, in Paris, France on June 11, 2017. (Xinhua/Han Yan)
Stan Wawrinka of Switzerland reacts during the men's singles final with Rafael Nadal of Spain at French Open tennis tournament 2017 at Roland Garros, in Paris, France on June 11, 2017. (Xinhua/Han Yan)