The 21st century has already seen a great number of exceptional tennis players, but who is the greatest? Novak Djokovic is undoubtedly one of the best tennis players of this century. With 17 Grand Slam titles and an Olympic gold medal, Djokovic is the only player to have achieved a Career Grand Slam on all three surfaces. He has also achieved a record of 8 Australian Open titles and has been the top-ranked player for more than 300 weeks. He is a true master of the sport, with a great ability to adapt his style to any court surface. With his unwavering commitment to excellence, he is undoubtedly the best tennis player of the 21st century so far.