Novak Djokovic has hired a new coach -- longtime friend and rival Andy Murray, who retired from competitive tennis this summer. Djokovic split with coach Goran Ivanisevic after six years earlier this summer, and he's counting on Murray to help him ...

Novak Djokovic announced that Andy Murray will be his coach for the offseason and Australian Open in a post to social media on Saturday.

The recently retired Andy Murray is going to team up with longtime rival Novak Djokovic as his coach, they both announced Saturday, with plans to prepare for — and work together through — the Australian Open in January.