Doping and a match made in heaven: Australian Open storylines
Novak Djokovic is seeking his 25th Grand Slam crown overall, a record, while he is also aiming to win his 100th career title.
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'Can get destroyed': Star's eye-opening Demon admission
Now 35 years old, just a few years younger than Novak Djokovic, Nishikori is navigating a new era of tennis.