Andy Murray retired from tennis in the summer but is set to make his comeback as legendary rival Novak Djokovic's coach ahead of the Australian Open.

Murray’s return to tennis is serendipitous, even if he has only been retired for a whole three months. Rafael Nadal has now followed Roger Federer into retirement, leaving Djokovic as the only one of the Big Four (or Big Three, depending on your disposition) still playing.

Djokovic split with his coach after six years earlier this summer, and he's counting on Andy Murray to help him prepare for the Australian Open.