<P> The Djokovic--Federer rivalry is a tennis rivalry between two professional tennis players, Novak Djokovic and Roger Federer . They have faced each other 45 times with Djokovic leading 23--22 . This includes a record 15 Grand Slam matches, four of which were finals, plus a record ten semifinals . Both players have beaten the other in each of the four Grand Slam tournaments . Federer dominated during their early slam matches, but Djokovic now has a 9--6 lead in Grand Slam matches, including eight wins in the last ten meetings . A notable aspect of the rivalry is their ability to beat each other on any given day, including Grand Slam play, making it one of the most competitive and evenly matched rivalries in the Open Era . To date Federer is the only man to have beaten Djokovic in all four majors, and likewise Djokovic is the only man to have beaten Federer in all four majors . Both men accomplished this after having beaten each other at Wimbledon . Both players are generally considered to be the two greatest hard court players in the open era . </P> <P> Their matches showcase an unpredictable display of shot - making . In addition, neither man has beaten the other more than four times in a row, as the changes of playing surface that occur throughout the year often produce little effect on determining the winner of their matches . In most other rivalries the type of playing surface has a profound effect on the outcome of matches, but in this rivalry, the type of surface in most cases does not give any considerable advantage to one player over the other . </P>

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