Novak Djokovic beats Juan Martin del Potro 2-1 at Italian Open

Argentina's Juan Martin del Potro returns a shot during the men's singles quarterfinal match against Serbia's Novak Djokovic at the Italian Open Tennis tournament (International BNL d'Italia) at Foro Italico sports complex on May 17, 2019 in Rome, Italy. Juan Martin del Potro lost 1-2. (Xinhua/Alberto Lingria)