Νέα Υόρκη - 11 Σεπτεμβρίου 2016: Grand Slam πρωταθλητής Νόβακ Τζόκοβιτς της Σερβίας σε δράση κατά τη διάρκεια του τελικού αγώνα στο Open 2016 μας στο Billie Jean βασιλιά Εθνικό Κέντρο Αντισφαίρισης στη Νέα Υόρκη - Φωτογραφίες & Εικόνες Αρχείου

NEW YORK- SEPTEMBER 6, 2016: Twelve times Grand Slam champion Novak Djokovic of Serbia in action during his quarterfinal match at US Open 2016 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 26, 2019: Grand Slam Champion Novak Djokovic of Serbia in action during his 2019 US Open first round match at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 1, 2019: Grand Slam Champion Novak Djokovic of Serbia in action during the 2019 US Open round of 16 match against Stan Wawrinka at Billie Jean King National Tennis Center

NEW YORK- SEPTEMBER 6, 2016: Twelve times Grand Slam champion Novak Djokovic of Serbia in action during his quarterfinal match at US Open 2016 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 31, 2015: Nine times Grand Slam champion Novak Djokovic in action during first round match at US Open 2015 at National Tennis Center in New York

NEW YORK - SEPTEMBER 7, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia in action during his 2018 US Open Round of 32 match at Billie Jean King National Tennis Center

FLUSHING, NY - SEPTEMBER 5: Professional tennis player Novak Djokovic during quarterfinal match at US Open 2013 against Mikhail Youzhny at Billie Jean King National Tennis Center on September 5, 2013 in Flushing, NY

NEW YORK - AUGUST 26, 2019: Grand Slam Champion Novak Djokovic of Serbia in action during his 2019 US Open first round match at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 3, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia in action during his 2018 US Open round of 16 match at Billie Jean King National Tennis Center

NEW YORK - AUGUST 31, 2017: Professional tennis player Grigor Dimitrov of Bulgaria in action during his US Open 2017 second round match at Billie Jean King National Tennis Center

NEW YORK- SEPTEMBER 6, 2016: Twelve times Grand Slam champion Novak Djokovic of Serbia in action during his quarterfinal match at US Open 2016 at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 3, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia in action during his 2018 US Open round of 16 match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 9, 2018: 2018 US Open Champion Novak Djokovic of Serbia in action during his final match against Juan Martin del Potro at USTA National Tennis Center

NEW YORK - SEPTEMBER 3, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia in action during his 2018 US Open round of 16 match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 5, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia in action during his 2018 US Open quarter-final match at Billie Jean King National Tennis Center

NEW YORK - AUGUST 26, 2019: Grand Slam Champion Novak Djokovic of Serbia in action during his 2019 US Open first round match at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 3, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia celebrates victory after his 2018 US Open round of 16 match at Billie Jean King National Tennis Center

FLUSHING, NY - SEPTEMBER 3 Professional tennis player Novak Djokovic during fourth round match at US Open 2013 against Marcel Granollers at Billie Jean King National Tennis Center on September 3, 2013 in Flushing, NY

FLUSHING, NY - SEPTEMBER 9 US Open 2013 finalist Novak Djokovic during his final match against champion Rafael Nadal at Billie Jean King National Tennis Center on September 9, 2013 in Flushing, NY

FLUSHING, NY - SEPTEMBER 3 Professional tennis player Novak Djokovic during fourth round match at US Open 2013 against Marcel Granollers at Billie Jean King National Tennis Center on September 3, 2013 in Flushing, NY