Novak Djokovic admits it feels a bit weird to now be sharing all of his game secrets and insights with Andy Murray after years of competing against each other and being one of the biggest rivals. After announcing a shock partnership, the Serb and the newly retired Briton did a 10-day training block before the world No. 7 departed for Australia.

Tennis fans are eager to see Novak Djokovic compete with Andy Murray in his players' box, but one tennis legend thinks Rafael Nadal could also be a good mentor

The balance of power at the top of the sport has shifted dramatically in the wake of Roger Federer, Andy Murray and Rafael Nadal retiring, and Djokovic cutting down his tournament schedule. Jannik Sinner and Alexander Zverev lead the men's rankings, with Alcaraz third and seventh-place Djokovic still a major player in big tournaments.