Novak Djokovic warmed up for the semi finals while he maintains his perfect ATP Finals record by winning against Marin Cilic. Five times champion of the season ending tournament despite assuming his spot at the top of Group Guga Kuerten prepared for his match as he defeated his opponent by 7-6 and 6-2. For Djokovic, … Continue reading ATP Finals; Novak Djokovic defeats Marin Cilic at the O2