НЬЮ-ЙОРК - 9 сентября 2018 года: Чемпион США по теннису 2018 года Новак Джокович из Сербии в бою во время финального матча против Хуана Мартина дель Потро в Национальном теннисном центре США - Стоковое фото и изображение

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

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

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 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 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

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 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

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

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

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 7, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia in action during his 2018 US Open semi-final 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 - 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 7, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia celebrates victory after his 2018 US Open semi-final match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 7, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia celebrates victory after his 2018 US Open semi-final match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 7, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia celebrates victory after his 2018 US Open semi-final match at Billie Jean King National Tennis Center

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

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

NEW YORK - SEPTEMBER 7, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia in action during his 2018 US Open semi-final 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 - 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

NEW YORK - SEPTEMBER 7, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia in action during his 2018 US Open semi-final 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 - AUGUST 26, 2019: Grand Slam Champion Novak Djokovic of Serbia celebrates victory after 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

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 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 7, 2018: 13-time Grand Slam champion Novak Djokovic of Serbia celebrates victory after his 2018 US Open semi-final match at Billie Jean King National Tennis Center