Novak Djokovic has been knocked out of the Monte Carlo Masters in the second round. He’s lost to the Czech world number 55 Jiri Vesely 6-4, 6-2, 6-4. It’s the first time the Serbian world number one has lost a completed match since August and it’s the earliest he’s exited a competition in three years.  Earlier this year Djokovic was forced to retire from his Dubai Tennis Championships quarter-final against Feliciano Lopez due to an eye problem.