The American says that Djokovic helped her before she claimed her maiden major title last year.
Dunlop and Tennis Now want to give you a new CX 200.
The event, which begiins on February 1, will be played in Melbourne alongside two ATP 250 events.
Kevin Anderson will play with the Dunlop CX 200 Tour 18 x 20 racquet.
The American pulled out with a knee injury.
The reigning Australian Open champion has found a new management team.
A new documentary untangles the story of the spaghetti-string racquet and its impact on tennis history.
