TEN-US OPEN-

Novak Djokovic of Serbia celebrates his victory over Roger Federer of Switzerland during their US Open 2015 men's single final match at the USTA Billie Jean King National Tennis Center on September 13, 2015 in New York.

Novak Djokovic of Serbia celebrates his victory over Roger Federer of Switzerland during their US Open 2015 men’s single final match at the USTA Billie Jean King National Tennis Center on September 13, 2015 in New York.