Joseph Parker is a changed man - even UK boxing hero David Haye can see it.
The former unified cruiserweight and WBA heavyweight champion said the Kiwi boxer has done a lot in his Las Vegas training camp heading into next weekend's WBO title defence against undefeated British fighter Hughie Fury.
"He's trimmed up, clearly he's been eating sleeping and training and not much else," Haye said.
"I know what it takes to whip yourself into great condition and he's obviously been living the life and a completely different human being than the one who was here 10 weeks ago."
Parker is training in Haye's central London gym having touched down in the UK this week after his eight week camp where he lost 10kg.
"I feel fabulous," Parker said.
"I feel this is the best I've felt in my whole career and I feel it's time to show everyone the new and improved Joseph Parker."
Parker fights Fury on Sunday 24 at approximately 9am NZT.