Rio Olympics: World No.1 Novak Djokovic cries after he's eliminated by Argentina's Juan Martin in 1st round

World number one male Tennis player Novak Djokovic was left in tears as he was shockingly eliminated in the first round of Rio Olympics by a determined Juan Martin del Potro who beat him 7-6 7-6 .

Novak representing Serbia was shocked by Argentina's Del Potro, who had spent 40 minutes stuck in an elevator in the athletes' village earlier on Sunday.Andre