Far from distracted, Novak Djokovic says fatherhood has given him fresh incentive to land a record fifth Australian Open crown and will only make him harder to stop at Melbourne Park.

The world No.1 said the birth of he and wife Jelena’s first child, son Stefan, in late October had “absolutely not” altered or hindered his preparations for the season’s opening grand slam getting underway on Monday.

“In terms of my approach to the tennis world, everything stays the same,” Djokovic told AAP after arriving in Australia.

“In contrary, I think I have even more motivation now to do even better here in Australia.”

Djokovic admitted juggling fatherhood with work as the game’s premier player posed obvious challenges but said tennis’s big daddy Roger Federer was proof that it didn’t have to slow anyone down.

“He’s a great example of somebody who has made the right and proper balance between his private and professional life,” Djokovic said.

“He’s still performing at the highest possible level in sport and he’s a father of four.

“I’m a father of one and I know what a joy it gives me to be a father and to be playing tennis at the same time.

“So I have now a new motivation, a new inspiration, so hopefully my son one day can see me play, can clap and support me. That’s one of my wishes.”

In the meantime, the blissfully content Serb is enjoying his son’s presence in his life.

“It gives you perspective,” Djokovic said.

“In a professional sport like tennis, which is very demanding, sometimes you get carried away by travelling, playing tournaments and you think that tennis is the only thing in your life.

“Then you accomplish yourself as a father, a family man, you realise there’s nothing compares to that.

“It has its ups and downs, obviously. It’s not easy; it’s a big responsibility.

“But it is definitely by far the the best thing that happened to me and my wife and it’s a crown for our love and our relationship that we have for now over nine years.

“This little boy who is almost three months and watching him grow up and have significant changes from week to week, reacting and smiling and so forth, these are beautiful things in life.”

Having won 11 of 12 matches since Stefan’s birth on October 21, Djokovic is a firm favourite to set himself apart from fellow four-time champions Federer and Andre Agassi and become the first man in the 47-year professional era to win the Open five times.