Juan Martin del Potro takes down Djokovic in Rio

Juan Martin del Potro cries while hugging Novak Djokovic. Photo: AP Juan Martin Del Potro has produced the biggest upset of the Rio Olympics, reducing world No.1 Novak Djokovic to tears after a drama-plagued day for the Argentine. Del Potro prepared for his Olympics opener against Djokovic trapped inside an athletes’ village elevator for 40 minutes [see more]