He has been ranked world No. Overall, he has won 99 singles titles, including a record 72 Big Titles : 24 majors, a record 40 Masters , a record seven year-end championships , and an Olympic gold medal.
Djokovic is the only man in tennis history to be the reigning champion of all four majors at once across three different surfaces.
In singles, he is the only man to achieve a triple Career Grand Slam , and the only player to complete a Career Golden Masters , a feat he has accomplished twice. Djokovic is the only player in singles to have won all of the Big Titles over the course of his career, having completed the Career Super Slam as part of that accomplishment.
Djokovic began his professional career in In , at age 20, he disrupted Roger Federer and Rafael Nadal 's streak of 11 consecutive majors by winning his first major title at the Australian Open. By , Djokovic had begun to separate himself from the rest of the field and, as a result, the trio of Federer, Nadal and Djokovic was referred to as the " Big Three " among fans and commentators.
In , Djokovic ascended to No. He remained the most successful player in men's tennis for the rest of the decade. In , Djokovic suffered from an elbow injury that weakened his results until the Wimbledon Championships , where he won the title while ranked No. Djokovic then returned to a dominant status, winning 12 major titles and completing his second and third Career Grand Slams.
