Joseph Parker and TYSON FURY are banned from sparring as it "not going well".
In recent years, the heavyweight duo have formed a strong friendship and are now training together.
Tyson Fury photographed with Andy Lee, his friend and training partner
Fury advised Parker to join Andy Lee, a former world champion when he was looking for a coach.
Lee, however, is against the idea of the duo sparring in camp - he fears the worst.
Queensbury Promotion's YouTube video by Lee: "No, they don't spar."
"It's only two alpha males in this type of environment, so you know it won’t end well.
"One person landing a good punch, and the other trying - it's not going well, so keep them apart."
Parker, 30 years old, has established a base in Britain along with Lee and Fury’s home training base at Morecombe.
The former WBO champ is currently training for his headline pay-per-view bout next Saturday in Manchester with Joe Joyce, 36.
Joyce, 35, is the current mandatory challenger to the WBO belt held by Oleksandr Uzyk.
Parker will be his opponent, but he will fight him for the interim title. If Usyk loses his strap, the winner would rise.
With a guarantee shot at the belt, Joyce took a huge risk by agreeing with Parker to face her in the interim.
Joyce has a rematch option in their contract, should he be defeated.
Parker also spoke out in an interview with iD Boxing: "I know deep down that I back myself 100 per cent to beat anyone."
"I want Joyce to be defeated first, twice. I must beat him in September. Then, we will have a rematch, and he will beat me again. After that, I can fight anyone.
"He is not champion, so he shouldn’t have a clause for a rematch. But it’s one of those things that they couldn't make the fight happen without it being in place.
"I don’t need a clause for a rematch, for Joshua I didn’t need one because I backed myself. I now back myself.
"I believe it shows some weakness. They didn't care about a clause for rematch the first time they negotiated with us."
Joe Joyce fights Joseph Parker September 24
