
Austria's Dominic Thiem returns the ball against Serbia's Novak Djokovic during the semifinal match of men's singles at the Italian Open tennis tournament in Rome, Italy, May 20, 2017. Dominic Thiem lost 0-2. (Xinhua/Jin Yu)

Austria's Dominic Thiem returns the ball against Serbia's Novak Djokovic during the semifinal match of men's singles at the Italian Open tennis tournament in Rome, Italy, May 20, 2017. Dominic Thiem lost 0-2. (Xinhua/Jin Yu)