Rio Olympics: World No.1 Novak Djokovic Cries After He Lost To Argentina’s Juan Martin In 1st Round
Novak Djokovic: Serbian Tennis Player Calls Loss During Olympics 1st Round 'Not Easy to Handle'
"No doubt it's one of the toughest losses in my life, in my career," Djokovic told the Associated Press after his loss to Juan Martin del Potro of Argentina in Sunday's Olympic singles event.