The Serb told reporters that he will need some time to heal the injury.
Tennis' glamour couple has separated after two years together.
A documentary on world No. 1's run to ninth Australian Open title will released later this year.
Novak Djokovic calmed a swirling storm of injury, controversy and history winning his ninth AO title.
Daniil Medvedev has seen the humanity and brutality of Novak Djokovic.
The Serbian World No.41 is thrilled to add the former World No.3 to his team.
The Japanese star says to play long enough to play a young girl who once named her as her idol.