Tyson Fury’s trainer Ben Davison has hit back at suggestions from the heavyweight's own father that the former world champion's whole career will be at threat until he changes his coaching team.

John Fury, the ex-professional boxer known as 'Gypsy John', was his son's trainer until he was sentenced to 11 years in prison back in 2011.

He has been on fringes of Fury's team since his release but the 6ft 9in 31-year-old has chosen Ben Davison to be his trainer.

Davison helped steer Fury to a gory victory over Otto Wallin here in Las Vegas on Saturday night when the former WBO, WBA and IBF champion secured a unanimous decision despite suffering two serious cuts around his right eye in the third round.

Fury Sr blasted the performance of his son and suggested that he was 'weak as a kitten' as a result of his current training regime. He went on to suggest that the current set-up will 'cost him his career'.

Tyson Fury vs Otto Wallin - in pictures Show all 22 1 /22 Tyson Fury vs Otto Wallin - in pictures Tyson Fury vs Otto Wallin - in pictures Fury's eye impaired his vision for much of the fight REUTERS Tyson Fury vs Otto Wallin - in pictures Fury awaits the scorecards REUTERS Tyson Fury vs Otto Wallin - in pictures The 6 ft 9 fighter collects his belt and remains undefeated REUTERS Tyson Fury vs Otto Wallin - in pictures Boxing - Tyson Fury v Otto Wallin - T-Mobile Arena, Las Vegas, United States - September 14, 2019 Tyson Fury in action with Otto Wallin REUTERS/Steve Marcus REUTERS Tyson Fury vs Otto Wallin - in pictures Boxing - Tyson Fury v Otto Wallin - T-Mobile Arena, Las Vegas, United States - September 14, 2019 Tyson Fury in action with Otto Wallin REUTERS/Steve Marcus REUTERS Tyson Fury vs Otto Wallin - in pictures Boxing - Tyson Fury v Otto Wallin - T-Mobile Arena, Las Vegas, United States - September 14, 2019 Tyson Fury sustains a cut above the eye during the fight REUTERS/Steve Marcus REUTERS Tyson Fury vs Otto Wallin - in pictures Fury's eye was bloody and beaten REUTERS Tyson Fury vs Otto Wallin - in pictures A cut above the eyebrow and another on the eyelid impaired his vision REUTERS Tyson Fury vs Otto Wallin - in pictures Tyson Fury, left, of England, follows through on a right to Otto Wallin, of Sweden, during their heavyweight boxing match Saturday, Sept. 14, 2019, in Las Vegas. (AP Photo/Isaac Brekken) AP Tyson Fury vs Otto Wallin - in pictures LAS VEGAS, NEVADA - SEPTEMBER 14: Tyson Fury punches Otto Wallin during their heavyweight fight at T-Mobile Arena on September 14, 2019 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) Getty Images Tyson Fury vs Otto Wallin - in pictures Boxing - Tyson Fury v Otto Wallin - T-Mobile Arena, Las Vegas, United States - September 14, 2019 Tyson Fury sustains a cut above the eye during the fight REUTERS/Steve Marcus REUTERS Tyson Fury vs Otto Wallin - in pictures Boxing - Tyson Fury v Otto Wallin - T-Mobile Arena, Las Vegas, United States - September 14, 2019 Tyson Fury in action with Otto Wallin REUTERS/Steve Marcus REUTERS Tyson Fury vs Otto Wallin - in pictures Boxing - Tyson Fury v Otto Wallin - T-Mobile Arena, Las Vegas, United States - September 14, 2019 Tyson Fury in action with Otto Wallin REUTERS/Steve Marcus REUTERS Tyson Fury vs Otto Wallin - in pictures Tyson Fury, left, of England, follows through on a right to Otto Wallin, of Sweden, during their heavyweight boxing match Saturday, Sept. 14, 2019, in Las Vegas. (AP Photo/Isaac Brekken) AP Tyson Fury vs Otto Wallin - in pictures Tyson Fury, left, of England, fights Otto Wallin, of Sweden, during their heavyweight boxing match Saturday, Sept. 14, 2019, in Las Vegas. (AP Photo/Isaac Brekken) AP Tyson Fury vs Otto Wallin - in pictures Tyson Fury, of England, punches Otto Wallin, of Sweden, during their heavyweight boxing match Saturday, Sept. 14, 2019, in Las Vegas. (AP Photo/Isaac Brekken) AP Tyson Fury vs Otto Wallin - in pictures Boxing - Tyson Fury v Otto Wallin - T-Mobile Arena, Las Vegas, United States - September 14, 2019 Tyson Fury in action with Otto Wallin REUTERS/Steve Marcus REUTERS Tyson Fury vs Otto Wallin - in pictures Fury was tentative in the early stages REUTERS Tyson Fury vs Otto Wallin - in pictures Sombrero, poncho, mariachi band. This Mexican style entrance had it all REUTERS Tyson Fury vs Otto Wallin - in pictures Fury wore a Mexican style poncho to the ring REUTERS Tyson Fury vs Otto Wallin - in pictures Wallin in the ring REUTERS Tyson Fury vs Otto Wallin - in pictures Otto Wallin walks to the ring REUTERS

But Davison, still only 26, insists he was very happy with the fitness of Fury, who weighed in at 254.4lbs which was his lightest since he dethroned Wladimir Klitschko back in 2015.

“Listen, if Tyson was a kitten, he wouldn't have been able to do 12 rounds like that,” Davison said in response to John Fury's comment.

“It was his engine and experience, strength and size which was the difference there. Strength wise I was perfectly happy with it.

“John is Tyson's dad so of course you have to respect him but Tyson was fully prepared and you can't do anything about sustaining a bad cut.

“Just because he's gone 12 rounds it doesn't mean he's weak. If he was weak he wouldn't have been able to do 12 rounds there.”

Wallin was a 12/1 underdog with most bookmakers along the Strip here in Vegas as Fury was expected to make reasonably lightwork of the little-known Swede.

It is only 13 weeks since Fury despatched Tom Schwarz inside two rounds and many expected a similarly one-sided affair.

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But Davison revealed he had specifically prepared his charge for the 'dogfight' which unfolded at the T-Mobile Arena as a result of the early cut.

“We worked in training camp for it to potentially be a dogfight because we knew that we might have to go there,” Davison said.

“Otto had heart and bollocks and tried to close the gap up and luckily we had prepared Tyson in case it went that way because that's what he needed.

“The cut affected him a lot, he couldn't see out of it but he had to make out like he could see out of it. That's why he made it a dog fight. Close the gap so he didnt have to be able to see the shots coming.

“He was listening to my instructions and doing what I was telling him to do. I thought Otto would crack but he showed a lot of heart and didn't crack.”

Victory means Fury is still on course to face Deontay Wilder in their long-awaited rematch, scheduled for February 22, provided his cut heals in time. But after back-to-back camps, Davison is wary of burnout.