Both players endured a testing start to their campaigns at Melbourne Park.
The world No.7 explains why he doesn't think the Australian will win the upcoming grand slam.
The former top 20 player said he doesn't want to be praised for his efforts in raising money for those affected.
The former top 20 player has said he is 'feeling refreshed' for the new season.
The tennis legend is unsure if the former top 20 player will be fit in time for the first grand slam of 2020.
The Australian is furious after being call 'an idiot on the court' by his rival.
Former world No.1 Lleyton Hewitt explains why the fiery player is back in the team after a 18-month absence.
Sebastian Grosjean claims that Nick Kyrgios can be incredible for tennis as long as he can control his on-court emotions.
The ATP has reached their verdict following an investigation that was launched into the behaviour of the tennis star.
Will the Australian tennis star play again this year?
The mentor of the world No.1 is puzzled by the conflict between the two players.
The 24-year-old isn't happy about what the former world No.1 said.
The former world No.1 is the latest person to speak out about the controversial player.
The 81-year-old tennis great has hit out at the world No.30.
Kyrgios has said he 'wants to go home' but does he want to be suspended?
The 2019 US Open has barely begun but off-court news surrounding the sport’s refereeing officials have reverberated more than the on-court results.
Roger Federer bounced back from a set down for the second match in a row to reach the last 32 at the US Open.
The former top 20 player has spoken out after making a comment that could lead to him being suspended from the tour.
The Australian finds himself caught up in yet more controversy following his latest match on the tour.
Another supercoach has opened the door to working with the controversy-stricken player.