Novak Djokovic of Serbia serves the ball to Malek Jaziri of Tunisia during their second round match of the Dubai Duty Free Tennis ATP Championships in Dubai, United Arab Emirates, 24 February 2016. EPA/ALI HAIDER
Novak Djokovic of Serbia returns the ball to Malek Jaziri of Tunisia during their second round match of the Dubai Duty Free Tennis ATP Championships in Dubai, United Arab Emirates, 24 February 2016. EPA/ALI HAIDER
Novak Djokovic of Serbia in action against Tommy Robredo of Spain during their first round match of Dubai Duty Free Tennis ATP Championships in Dubai, United Arab Emirates, 22 February 2016. EPA/ALI HAIDER
Novak Djokovic of Serbia returns the ball to Malek Jaziri of Tunisia during their second round match of the Dubai Duty Free Tennis ATP Championships in Dubai, United Arab Emirates, 24 February 2016. EPA/ALI HAIDER
Novak Djokovic of Serbia serves the ball to Malek Jaziri of Tunisia during their second round match of the Dubai Duty Free Tennis ATP Championships in Dubai, United Arab Emirates, 24 February 2016. EPA/ALI HAIDER
Novak Djokovic of Serbia poses with a cake for his 700th ATP Tour win after defeating Malek Jaziri of Tunisia in their second round match of the Dubai Duty Free Tennis ATP Championships in Dubai, United Arab Emirates, 24 February 2016. EPA/ALI HAIDER
Topics: 10sballs, 700th tennis win, Atp World Tour, Djoker Nole, Dubai Duty Free tennis, Idemo, Novak Djokovic, Serbian tennis, Sports, Tennis, Tennis Photos