Why the top spot isn't the most important thing for the Serbian.
Will it be Rafa or Novak that ends 2019 at the top of the world's rankings?
Two team events is too much for the former world No.1.
The duo have turned some heads due to the timing of their exhibition with two key ATP 500 events.
Rafael Nadal, Novak Djokovic and Andy Murray will all play in the Davis Cup Finals next month after being nominated by their respective countries.
Dijana Djokovic speaks out about the world No.1 and his rivalry within the Big Three.
Details about what the two players will be up to during their time in the central Asian country has been released.
The 21-year-old staged an emphatic comeback to defeat the world No.1 for the second time in his career.
The world No.1 shares his thoughts about one of the most in form players currently on the men’s tour
The world No.1 rounds off a perfect week in his first tournament since pulling out of the US Open with an injury.
Novak Djokovic is feeling positive after reaching his 110th ATP Final in Tokyo.
The 16-time grand slam champion was in top form during his latest clash in Japan.
The world No.1 didn't have it all his own way in his latest match in Japan.
The world No.1 was in impressive form during his debut at the Asian tournament.
The world No.1 briefly swapped the tennis courts for a sumo ring in Tokyo.
Who has already qualified for the ATP Finals, and who is in position to claim the remaining spots?
The mentor of the world No.1 is puzzled by the conflict between the two players.
The world No.1 has shed some light on his current fitness following his US Open withdrawal.
Details of where Murray, Federer, Djokovic and Nadal will play their first matches of 2020 have been announced.
He will never win a popularity battle with Federer, but does that really matter?