Kiwi heavyweight Joseph Parker says the prospect of facing Britain's Anthony Joshua is pushing him beyond his limits, as both fighters prepare for their title unification showdown in Cardiff.
Parker, 26, arrived in the UK ahead of his fight with WBA and IBF champion Joshua, putting his WBO title on the line in a winner takes all showdown on April 1 NZT.
Speaking to BoxingScene, Parker spoke about the proposition of what is easily the biggest and most difficult match-up of his career.
"It's certainly fair to say that this challenge of Joshua is bringing something out in me that I haven't felt previously," Parker told Boxing Scene.
"I didn't know if it was true before, that facing someone so dangerous changes something within you and takes you to a higher level, but I can definitely say that it does."
"I don't believe Joshua has ever seen a style like mine so yeah one hundred percent, now is the time to deliver my very best performance. Against an opponent like Joshua I'll certainly need it."
Parker also talked up his preparation in Las Vegas, saying that he's in the best shape he's ever been in before facing the unbeaten Joshua.
"My body is feeling fitter, I can work with more intensity, I feel like there is some magic that is going to happen."
"I'm now a lot leaner, I've got more energy, I've got more power and I'm moving a lot better. When you're following the plan, when you're eating well and you're getting your rest everything just clicks and the mind is affected big time."
"But for this fight I don't feel any of that. I know I've done everything possible and now I'm just looking forward to fighting and handing out a whipping."