Anthony Joshua’s trainer Rob McCracken insists the health of his boxers is of “paramount importance”.
Brain injury charity Headway called it a “shocking admission”.
“I am not a doctor and it may be that concussed is not the right term to have used,” McCracken said on Thursday.
“The health of all the boxers I work with is of paramount importance to me and I have always used my judgement and experience to do what is right for them.
“There is no formal concussion protocol where the doctor steps in to assess the boxer so you have to use your experience as a coach and your knowledge of the person to make a decision on whether you think they can recover.
“I have had this a number of times in my career in professional Boxing where boxers have recovered from a difficult round to go on and win the fight. I have also pulled boxers out of fights because I knew it was not in their interests to continue.”
Before the seventh round, in which he was stopped by his Mexican-American opponent, Joshua looked perplexed in his corner and said to McCracken: “Why am I feeling like this?”
GB Boxing has backed McCracken, 51, who is its performance director.
“Anyone who has ever seen him work knows that he has the best interests of the boxers at heart,” a spokesperson said.
“Ensuring we deliver a duty of care and protect the physical and mental health of the boxers is central to the way that Rob McCracken has led the world class programme for Boxing over the last 10 years.”
Prior to McCracken’s statement on Thursday, Luke Griggs, deputy chief executive of Headway, had said: “Trainers have a duty of care to their boxers and it seems clear that Anthony Joshua’s trainer’s sole priority was winning that fight, not protecting the fighter from a potentially fatal injury.”