Benn denied any wrongdoing and insisted he had passed all UK anti-doping tests and after speaking to Eubank Jr, had hoped the fight would still go ahead. But that is now off the cards with fierce criticism labelled at promoters for trying to push through the fight.

Hatton trains Chloe Watson, who had been due to feature on the undercard against Nancy Franco, and he revealed he spoke to Benn after the announcement – but admits there was no way the fight could go ahead.

“Conor said to me he doesn’t know how this happened, I believe him, he’s built like his dad, from the same cloth. I believe him when he said he can’t wait to get to the bottom of it. But rules are rules, drugs tests are put there for a reason.” Hatton said.

READ MORE: Chris Eubank Jr responds to news that Conor Benn has failed drugs test 

Despite reported attempts to seek a license elsewhere, Matchroom chief Eddie Hearn insisted they were not ‘in the wider interests of the sport’. He did however go on to point the finger at the British Boxing Board of Control for their ‘flawed’ decision to withdraw.

Announcing the official postponement, he added: “As promoters, we take out obligations and duties very seriously and a full investigation will now need to take place.”