It appears a rematch with Zhang may not be the Kiwi heavyweight's next date in the ring.
It comes after his majority decision victory over China's Zhilei Zhang.
The Brit now wants a crack at the winner of Tyson Fury v Oleksandr Usyk.
Parker was knocked down twice but was the far more active fighter throughout.
Mike Tyson said it would be 'fun' to take on the social media celebrity, turned pro boxer.
The winner will walk away with the WBO interim heavyweight title.
The Brit has delayed the unification bout for the second time, due to injury.
A freak sparring accident to the Brit has forced a postponement to May.
Kiwi David Nyika was scheduled to meet an unconfirmed opponent on the undercard.
