Nigel Benn has confirmed he will return to the ring after a 23-year absence at the age of 55.
Despite being widely advised against it, the former two-weight world champion will take on Sakio Bika in Birmingham on November 23.
Benn last fought in 1996 when he was beaten by Steve Collins for a second time.
His fight against Bika – who is 15 years Benn’s junior and last fought in 2017 – will be sanctioned by the British and Irish Boxing Authority.
Benn had held discussions with the British Boxing Board of Control but they advised him they would not issue the veteran with a licence.
Benn has been described as “the fittest 55-year-old on planet Earth” but promoters Frank Warren and Eddie Hearn have voiced their concerns.
Benn’s promoter Mark Peters told the BBC: “It’s not like Nigel left the sport, hung up his gloves and never trained again. He must be the fittest 55-year-old on planet Earth.
“He has still been training twice a day and he will shadow box anywhere. I wouldn’t support Nigel if I didn’t believe he was fit to box.
“It’s his life and his prerogative to fight. From his point of view, this is closure for him.”
But Warren, who promoted Benn at the beginning and end of his career, said: “I don’t know if he is doing it for financial reasons but, whatever reason, he shouldn’t be doing it.
“I don’t want him to do it. I have a lot of love for him.
“I promoted the start of his career and he finished his career with me.
“Fifty-five-year-old men should not be fighting, especially when they’ve been out of the ring for 23 years.
“I hope he is not doing it for financial reasons. It can’t be good for his health.
“He is well loved by the British public, he is one of the boxing icons of the 1980s and 1990s. It’s sad that he is doing this.
“This cannot, under any circumstances, be good for his health even if he fights some old geezer who is going to fall on the floor.
“He started with me, ended with me. Anyone who cares about him should discourage him from doing it.”
Hearn, meanwhile, warned Benn against facing Bika who was a world champion as recently as 2014.
He said: “I have too much respect for Nigel Benn to criticise him.
“He must have his reasons for doing it, I don’t believe it is just money.
“Sakio Bika is still a right handful, he is strong, he can punch. He is horrible with his head, he is dirty.”