Nick Kyrgios has once again insisted that the finish line is in sight as the 27-year-old reiterated plans to retire from tennis in the near future.

Kyrgios revealed last year that a grand slam triumph would be enough for him to walk away from the sport, and repeated that notion following his charity exhibition match with Novak Djokovic.

The Canberra-born star admitted that he struggles to commit to the 'dedication' required to perform at the highest level.

'100 per cent,' Kyrgios said after putting on a show with Djokovic. 

'It's a lot of training, a lot of work, and I just want to be able to eat whatever I want, drink what I want to drink.

'It's a hard lifestyle. The dedication these guys show... I did a bit of that last year to show the world I'm still one of the best.

'But I'm going to try and do it this year and hopefully I can do it, but it will be hard.'

Kyrgios reached the Wimbledon final last year, losing to Djokovic at the All England Club. Ahead of the Australian Open, the 27-year-old insisted that he is one of the best players on the planet.

'I am one of the best players in the world so I'm definitely going to go into the Australian Open, any tournament, with confidence,' said the Australian number one after practice at Melbourne Park on Thursday.

'It's a bit different this time around for me being one of the favourites. Usually I'm a dark horse type thing but now, obviously after the year I've had, I'm one of the favourites so it's kind of new for me as well.

'This is the first time I've genuinely gone into a slam feeling like I'm one of the guys that can really take the trophy and knock on the door. I don't know what I'm going to be feeling when I get out there.

'Usually I've got nothing to lose and just putting on a show, but I've got to try to really find that balance. Fourteen days to win one of these things is not easy. Obviously I'm capable but so many other people are capable as well.'