The two heavyweights go head to head at the Principality Stadium on 31 March, with the WBO, WBA and IBF titles all on the line.
Parker is confident he’ll get the better of his rival and, assuming he wins, is happy to reschedule another bout with Joshua after the March fight.
“I think my plans for the year are I fight Joshua and I beat him and then a rematch so that’s my plans for the year,” Parker told New Zealand radio station The Rock.
He added: “Camp is going fantastic. I feel like I’m in great shape.
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“I feel like I’m punching sharp, I’m moving well, making a lot of angles, movements, fitness is good, so everything is on track.”
It was also announced this week that Joshua will begin sparring with Carlos Takam, his most recent opponent, in preparation for March’s unification showdown.
Joshua was left impressed by Takam after being taken to the 10th round by the Cameroon-born boxer last year and has subsequently invited him into his camp.
“AJ doesn’t want to spar someone who is not on a world level, AJ wants someone who is competitive,” Eddie Hearn, Joshua’s promoter, revealed.
“It’s a compliment that AJ has six or seven sparring partners but has said ‘I want Takam because I believe that’s a great spar, he can give me great work.”
Joshua, the WBA and IBF belt holder, heads into his fight with Parker as favourite, having won all 20 of his professional bouts since turning pro in 2013.
Parker is similarly undefeated, having most recently beaten Hughie Fury by majority decision in September of last year.