Chris Eubank Sr instructed his son to target Nick Blackwell’s body rather than his head during the fight which left Blackwell in an induced coma.
Eubank Jr claimed the British middleweight title after the ringside doctor ordered the fight to be stopped in the 10th round, due to swelling above Blackwell’s left eye.
After the end of the bout, Blackwell collapsed in the ring before being carried out of Wembley Arena on a stretcher and taken to hospital, where he was placed in an induced coma.
TV cameras captured Eubank Sr entering the ring at the end of the eighth to express concern to his son about what would happen to Blackwell if he continued to take punches to the head.
He said: “If he doesn’t stop it and we keep beating him like this, one, he is getting hurt, and two, if it goes to a decision – why didn’t the referee stop the fight? I don’t get why.
“So maybe you shouldn’t leave it to the referee.
“You’re not going to take him out to the face, you’re going to take him out to the body.”
Eubank Sr was also seen banging on the canvas floor of the ring in an attempt to get referee Victor Loughlin to call off the fight.
Unfortunately Nick is now in an induced coma… my thoughts & prayers go out to his family & friends.
— Chris Eubank Jr (@ChrisEubankJr) March 27, 2016
British Boxing Board of Control general secretary Robert Smith defended the conduct of both Loughlin and Blackwell’s trainer Gary Lockett during the fight.
“I’ve spoken to the referee, Victor Loughlin, I’ve spoken to Gary Lockett,” Smith told the BBC. “We had discussions with regard to how the fight went and I’m satisfied with their decisions on the evening.
“Nick Blackwell wanted to be a boxer, like everybody else who wants to take part in boxing. We all know the risks.
“I think [it] was a very hard contest and I think the referee did a good job. Nick Blackwell kept fighting back. He is a very proud man.”
Asked about Eubank Sr’s concern during the bout, Smith added: “There [were] also a lot of other experienced people there who would disagree. He’s entitled to his opinions.
Eubank Jr dominated the fight at Wembley Arena and had earlier bloodied Blackwell’s nose in rounds three and four, before landing a number of heavy blows in round seven.
He wrote on Twitter on Sunday afternoon: “Unfortunately Nick is now in an induced coma… my thoughts & prayers go out to his family & friends.
“He’s a true fighter & I whole-heartedly believe he will pull through. Appreciate everyone that came out to support the fight.”
“Other people there thought it was a good fight. It’s just the nature of the sport and we wish Nick well.”