Frank Warren said David Haye was a "cry baby" for blaming his loss to Wladimir Klitschko on a broken toe.
Klitschko, 35, scored a unanimous points victory in their heavyweight unification clash in Hamburg last night, but afterwards Haye revealed the toe injury which he said had impeded his ability to attack.
Warren told BBC Radio 5 live's Sportsweek programme: "He shouldn't be in the fight if he had a broken toe. Why be a cry baby after the event? It's ridiculous.
"When your title's on the line you've got to give your all and he just didn't do that.
"To talk about toes and whatever afterwards is just cry-baby stuff and I thought it was quite embarrassing. You'd think he'd be a bit more gracious in defeat.
"If he decided to (fight) with a broken toe then that's what he decided to do and he has to take the consequences. The fans and people who may have had a bet on him were unaware of that and it's wrong.
"It wouldn't have made any difference if he had a broken toe or not. For me it was a fight that I never could see him winning.
"I always thought Klitschko was a class act and I always thought his jab would be the determining factor in the fight and that's how it turned out."
Former heavyweight champion Frank Bruno felt Haye should have pulled out of the fight because of the injury.
Bruno told Sportsweek: "If he had a broken toe I would advise him to pull out because a broken toe is your balance and it works everything.
"You can't punch straight, you can't balance yourself, you can't even move. A broken toe's a serious thing.
"If you've got a broken toe your balance and everything goes, but he must know his business. If he fought with a broken toe he must be a very brave man."
Bruno felt that, with or without an injury, Haye had his work cut out because of the sheer size of his Ukrainian opponent.
Haye, the former undisputed world cruiserweight champion, was giving away two stone in weight and three inches in height to Klitschko.
And Bruno said: "(Klitschko was in charge) from the beginning to the end.
"I feel sorry for David Haye. He tried his best but he couldn't get off to a good start. (Klitschko) kept his jab in his face and kept him on the back foot.
"He kept (Haye) at a distance, tied him up, leaned on him and tired him.
"He tried his best, David Haye, but a good big one will always beat a good little one."
On how Haye will be remembered, Bruno added: "He's a good fighter, he's a very, very good cruiserweight, very, very dangerous.
"But heavyweight and cruiserweight are different cups of tea: Primark and Harrods, chalk and cheese."
Warren feels it is time for Haye to call it a day rather than seek a fight with Klitschko's brother Vitali, the WBC champion.
He said: "Is there a fight between him and Vitaly, which is the only other fight I could see him having? I wouldn't think so because I think Vitaly is probably the better fighter out of the two brothers and I don't think there'd be any different result.
"He was an outstanding cruiserweight, he's got money in the bank - what does he need to fight on for?
"I don't think he's got it at that level. The couple of wins he had, I thought Valuev for me was one of the worst heavyweights I'd ever seen. Audley Harrison - that was a non-fight.
"That was his first defining fight at heavyweight and for me he never won a round."
