Chris Eubank Jr scolded his promoter Ben Shalom for attempting to reveal the difficulties he had faced in camp in the lead-up to Saturday night’s fight with his rival Conor Benn.
Benn, 29, beat his old rival Eubank Jr over 12 one-sided rounds and came close to sealing a knockout in the final stages, sending Eubank Jr to the canvas twice in the last round.
He secured a unanimous decision to conclude their rivalry, winning 119-107, 118-108 and 116-110.
Eubank Jr – who was hospitalised for two days after his victory over Benn in their previous meeting in April in part due to the severe dehydration he endured to cut weight – looked in far better physical shape coming into the fight this time around.
But as the rounds progressed, Eubank Jr, seven years Benn’s senior, appeared increasingly tired and flat.
In the aftermath of the defeat, Eubank Jr stormed out of the press conference just as his promoter Shalom began to hint at the significant difficulties he had gone through to make the fight, prompting an irate response from Eubank Jr as he headed for the exit.
Shalom told the press at Tottenham Hotspur Stadium: 'All I want to say is what Chris went through in camp, he won't want to talk about it but the things I saw - he did incredibly well to get in the ring tonight. And I just want to say, he's the reason this has been so big.'
Eubank Jr then interjected, shouting 'Ben' from across the conference room, to which Shalom replied: 'I know you don't.'
Shalom continued: 'Chris doesn't way to say it but I saw what I saw and he deserves a huge amount of credit to get in there tonight. It was an unbelievable spectacle.
'Thank you to Turki Al-Sheikh, thank you to all the media that turned out - and we'll see what's next.'
Before storming out, Eubank Jr had hinted that personal issues, combined with the weight cut, had caused problems during camp, and he knew from the opening round that he was facing an uphill battle in the rematch.
'I've been through hell and back to make it here today,' he said. 'I genuinely thought that regardless of the issues that I've been dealing with, I would be able to go in there and win.
'Use my boxing skills. Use what you guys saw in that first fight to beat Conor Benn. From that first round, I realised that I was mistaken, but it's okay. I'm a fighter. This is what I do.
'I tried my best. Conor Benn put on a hell of a fight. He had a great performance. He did everything that was asked of him, and I congratulate him for his performance.'
When asked if he would consider a trilogy fight, the 36-year-old remained non-committal.
'Right now, I'm not really in the state of mind to be thinking about next fights. I need to heal. I need to deal with what I'm dealing with and then after that I can start thinking about my path in the sport.'
Eubank Jr weighed in lighter than Benn before the fight after being fined £375k for missing the 160lbs limit by 0.05lbs in the first encounter, having had to abide by strict conditions that were inked into the contract.
The same rules applied for the rematch with Benn tipping the scales at 159.3lbs.
Eubank Jr weighed in slightly lighter at 159.1lbs and put his body through hell to achieve it. Footage of his weight cut on X showed him dripping with sweat in a sauna after effectively mummifying himself.
He wrote: 'Ain’t no way I’m missing weight this time.'
Eubank Jr also posted a clip of him wearing a full sweat suit, roasting himself as he set to work on the exercise bike while draped in a towel and wearing a plastic hat as he attempted to shed the final pounds in time.
After the fight, Benn appeared committed to ending their rivalry for good after gaining revenge for the unanimous points defeat he had sustained seven months prior - after their fathers twice fought each other in epic world title fights in the 1990s.
He celebrated wildly in the ring after achieving something his two-weight world champion father Nigel never succeeded in doing - beating a Eubank - in the latest instalment of the bitter rivalry between the two families.
'It's been some journey and I feel like this is the end of the Benn-Eubank saga,' he told DAZN. 'It's done and finished. It's over. This ends here.'
Benn then said that 'everyone was saying "can't box" - put that in your pipe and smoke it', before praising his opponent and their fathers.
'This wouldn't have been what it was without Chris and without our dads,' he added. 'This is generational. This is history. Credit to Chris. That's all I've got to say. Not bad for two silver spoon kids.'