Novak Djokovic has been pleasantly surprised by the professionalism of new coach Andy Murray in the leadup to the Australian Open but said sharing his deepest thoughts with his former rival had initially been a challenge.

Novak Djokovic got the bright idea to hire the recently retired Andy Murray as his coach, at least through the Australian Open.

"I know this court well. I have never managed to win the title here and this man - indicating Djokovic - is the only one responsible. Now I am here to try to sabotage him so that he does not win another Australian Open!" said Murray before telling the story behind the new collaboration.