Tony Bellew was shocked when a news conference melee saw David Haye throw a punch at the WBC cruiserweight champion.
Speaking at the first media event ahead of their fight on March 4 the pair traded insults across the table before things spilled over when they posed for pictures.
Bellew was left stunned when Haye threw, and missed, with a left hook having been pushed away by the Liverpudlian in front of photographers.
"He [Haye] can be shook and he can be hurt. He is nothing special. He got angry and shaken. I have never seen him so shaken," Bellew told Sky Sports News.
"I am cool. I am from somewhere he can't imagine. I am used to drama.
"I am shocked he has thrown a punch at me. I don't want our sport to be put across like this. I have pushed him to get him out of my face and he has thrown a punch."
After barbs from Bellew about Haye spending his time in nightclubs, Haye responded by telling the champion he would knock him out in the fight at the O2 Arena.
"You and your whole team are going to get destroyed," he told Bellew. "Whatever I do now in my life is irrelevant because on fight night, you're going to get knocked out.
"I could go clubbing every night. From now until the fight... get smashed out of my mind every night, and I'll still knock you out.
"I will turn up, drunk out of my head, and you'll get knocked out."
Bellew, meanwhile, insisted he did not fear the former WBA heavyweight champion before describing Haye as the "biggest diva in boxing".
"I don't fear him," he said. "He's got this thing that I'm scared of him.
"All those demands, all those stipulations you put in. 'I want the ring this size, I want the mat that size'... Listen mate, I'm not going to run from you. I know you believe I'm going to run.
"All these stipulations he put in, I'm surprised he didn't ask me to carry him to his seat in the press conference, to be honest.
"Do you want me to do your hair as well? The man is unbelievable. My demand was - let me pick my own gloves and get in the ring.
"He's unbelievable - the biggest diva in boxing I have ever seen."