A war of words has erupted between the New Zealand heavyweight boxer and his next opponent Alexander Dimitrenko.
The Russian giant claims that Parker didn't win his bout against French boxer - Carlos Takam, back in May.
That win set Parker up for a showdown with British boxer, Anthony Joshua, for the IBF world title.
A visibly angry Parker told media he's never felt more disrespected.
"This is my home, this is my home country and he's come here and disrespected me.
"I respect every fighter I get in the ring with. If I went to his home country (Germany) I wouldn't disrespect him. (Carlos) Takam was a hard fight and I trained really hard for that.
"It was a close fight but Takam's team and our team knew that we won. For him (Dimitrenko) to come here and disrespect us, I don't like it," Parker said.
Joseph Parker and Alexander Dimitrenko will square off in Auckland on October 1.