Andy Murray has affirmed the gruelling nature of his brief coaching career ahead of his client’s debut at the Australian Open. The Scotsman was announced as Novak Djokovic’s primary coach at the end of November,

The Serbian star, who has won the tournament 10 times, faces American Nishesh Basavareddy in the first round on Monday.

If Novak Djokovic can win a 25th major title in the coming days, he will bolster his claim to be considered the greatest athlete in history, according to his new coach Andy Murray.