They might have looked like the best of friends following their classic bout in Manchester in December 2016, but it still seems like Dillian Whyte and Dereck Chisora are the bitterest of rivals.
And Chisora - who lost that fight due to a controversial split decision - has been helping warm up Whyte's next opponent, the giant Australian powerhouse Lucas Browne.
'Big Daddy' Browne became the WBA heavyweight champion of the world in March 2016, but was stripped of the title following a failed drugs test, which later was overturned and subsequently cleared his name - before failing another test in November 2016.
Browne is being thrust right back into title contention with his clash against Whyte, who currently holds the WBC Silver heavyweight belt.
The two will face off at London's O2 Arena on March 24, just a week before Anthony Joshua's mammoth unification clash with Joseph Parker in Cardiff, which both will assumingly have a close eye on.
Chisora has revealed he's been advising Browne on his approach after getting in the ring to spar against him in the build-up to the clash.
"I just told him, listen, stay sharp, and just focus. Box how you train. I gave advice. I told him: 'Do what your coach tells you'," he told Sky Sports.
"I don't know if Mr Whyte is disappointed. Mr Whyte is Mr Whyte. I can't really say much.
"The problem with Dillian, he likes to roll with this big entourage. I roll by myself. I don't really care, to be honest with you.
Despite being huge rivals over the years, Chisora revealed that he and Whyte communicate occasionally, mostly to mock one another, whilst teasing at the same time that 'Del Boy' may well be fighting on the undercard on March 24.
"Me and Dillian, we normally take the p*ss out of each other," Chisora told Sky Sports.
"We just shout at each other on text message. He texted me one day, goes 'Do you want to fight on my undercard?' I was like 'Yeah, why not.' I sent him a sh*t emoji."
Chisora meanwhile has admitted negotiations are underway to fight the man Anthony Joshua last conquered - Carlos Takam.
The 37-year-old Frenchman has found big heavyweights such as Parker and Alexander Povetkin too much in the past, but his stock rose after taking a lot of punishment against Joshua, after replacing Kubrat Pulev late on.
And Chisora confirmed talks are already underway.
"Yeah, we're in talks about that now," Chisora continued. "We'll go to war.
"He's a tough guy, Joshua hit him with everything he had, but Takam was losing the fight.
"It was a good thing that the ref stopped it, because if you're getting hit like that, and not doing much, and expecting to get one punch in.
"If he was hitting AJ back as many times, the fight wouldn't have been stopped.
"But it was one-way traffic, and he was getting pounded so much in the head. It was a good decision for the ref to stop the fight."
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