"I'm in great shape", said the 26-year old.
"He thinks I can't go to war".
Trainer Kevin Barry said their time together had been reduced by nearly a week with Parker having to fly for 24 hours to the United Kingdom for the opening press conference and a further 10 hours onto Las Vegas.
"Joseph Parker is a softly spoken and likeable man - but make no mistake that in the ring, he's all business and has bad intentions for Dillian". He's been talking a lot of smack and that's a sign of doubt.
Parker, who has not fought since losing his WBO title to Britain's Anthony Joshua in April, suggested he would have "no excuses" if he lost to Whyte.
Spoke to Andy Scott about why Joseph Parker took the Dillian Whyte fight and what his plans are for the future. "I hope he's ready to take a lot of punches because I'm going to give it real bad".
Parker was also in attendance taking the opportunity to show the public how he trains
"He did a tremendous job against Browne", Parker said.
Whyte's trainer Mark Tibbs came the closest to re-hashing those claims when he said: "He made all the promises about what he was going to do and what he wasn't going to do [before Joshua fight]". I'd have given it a go'.
Parker is still recovering from the loss of his WBO crown earlier this year, and faces an in-form Whyte who is looking to add to a string of recent victories. "I'll be ready for it".
Pressed for a prediction, Whyte promised "pure pain".
"He's been here a couple of times but no one's hurt him yet and I want to be the first to hurt him". I have a challenger's mentality. "I know he wants to get to the top and to do that he has to go through Dillian Whyte. I don't see it going 12 rounds".
"I feel some people think I have a spoiling style".
Dereck Chisora: Says he is going to war with Carlos Takam this weekend live on Sky Sports Box Office.