Novak Djokovic

Novak Djokovic is a Serbian professional tennis player. He is currently ranked world No. 6 in singles by the Association of Tennis Professionals (ATP). He has been ranked world No. 1 for a record total 373 weeks, and has finished as the year-end No. 1 a record seven times. He has won 21 Grand Slam men's singles titles, including a record nine Australian Open titles. Overall, he has won 88 ATP singles titles, which include a record 64 Big Titles and a record 38 Masters titles. Djokovic is the first and only man in tennis history to be the reigning champion of the four majors at once across three different surfaces. He is the only man to complete a non-calendar year Grand Slam in the Open Era and the first to achieve a double Career Grand Slam. He is also the only player to complete the Career Golden Masters on the ATP Tour, which he has done twice.