Murray, who retired in August, jokingly blames Djokovic as the main reason he never captured an Australian Open title.

Novak Djokovic and Andy Murray have linked up for the Australian Open, but the Serb was in no mood to give a glowing review of his new coach's impact

"Provided he’s giving his best effort and trying as hard as he can, I’m absolutely fine with him expressing himself." Read more at straitstimes.com.

The fiery Scotsman, who took over as Djokovic's coach in November, says he has a good understanding of what it's like to feel frustrations on the court.

If Novak Djokovic Wins Australian Open, Andy Murray Would Be ‘Flooded With Coaching Requests,’ John McEnroe Says

Novak Djokovic's former rival-turned-coach Andy Murray does not want the Serbian to suppress his emotions on court and is even willing to be the target of any angry outbursts as long as the 24-times major winner gives his all at the Australian Open.

Sir Andy Murray has revealed that his shock invitation to work with Novak Djokovic arrived when he was on the golf course – just as he was telling his playing partner that “I can’t imagine anything worse” than coaching.

Andy Murray jokes he's 'here to sabotage' Novak Djokovic after the Serbian star was 'single-handedly responsible' for him never claiming an Australian Open title

Andy Murray has joked that he wants to "sabotage" Novak Djokovic at the Australian Open after losing four finals in Melbourne to his former rival - who he will be coaching at the year's opening major.