It will be all business when Andy Murray coaches Novak Djokovic at the Australian Open. While the partnership between two of the biggest rivals in recent men’s tennis history has awakened feelings of shock,

Novak Djokovic was famously deported from Australia three years ago after his visa was cancelled, and the Serbian has now claimed he was "poisoned" while in a quarantine hotel

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.

"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.

As Andy Murray joins Novak Djokovic as his coach for the Australian Open, BBC Sport takes a look at the defining moments of their great rivalry.

Novak Djokovic returns to the scene of his greatest triumphs this week at the Australian Open, adamant he is ready and able to see off the challenge from Jannik Sinner and Carlos Alcaraz in his pursuit of a record 25th Grand Slam crown.