Haye hits out at Chisora

David Haye claims Dereck Chisora has got "a few screws loose" after agreeing to a very "personal" and controversial grudge match against the unpredictable British heavyweight.

After a week of speculation, it was confirmed that Haye and Chisora will fight at Upton Park on July 14. Chisora and Haye traded insults over a seven-foot steel fence that separated them, and at least a dozen security guards were on hand to prevent any repeat of the Munich brawl between the pair after Chisora's defeat to Vitali Klitschko in February.

"I truly believe he has a screw loose, a few screws loose actually," said Haye, who is coming out of retirement for the fight following his points defeat to Wladimir last July. "Dereck does some really strange things."

He added: "I have seen him get hold of a guy and kiss him, I have seen him push another guy in the face at the weigh-in and look at his criminal record - bashing up his missus, assaulting police officers, carrying offensive weapons..."

Chisora's antics before the February 18 fight in Germany also caused outrage, with the Londoner slapping Vitali at the weigh-in and spitting water over his brother Wladimir prior to the bout. Chisora was stripped of his licence, meaning organisers had to have his next fight sanctioned by the Luxembourg boxing federation.

"This is definitely personal," Haye told Press Association Sport after the main press conference ended. "We genuinely don't like each other. He has threatened to break my jaw, he has threatened to slap me.

"This fight is about eradicating boxing of an idiot. I am so glad he has got a good chin because if he didn't he would be blasted out in the first round. I will give him a nice, slow, concussive beating."

Haye insists there will be separate weigh-ins for both fighters - a scenario that was played out when Mike Tyson fought Lennox Lewis at the height of their rivalry.

"The head-to-head weigh-in is off the cards," the 31-year-old added. "It's not happening because it will kick off. At no stage do I want to be in this guy's personal space because we have done that before and it didn't end up nicely. If there wasn't a fence there today I know for a fact that he would have tried to do something.

"He's just the most bizarre person. He was talking mad things through the fence. He was asking where I got my suit from, what I am doing on Sunday. The guy is mental. He's gone in the head."