By Rick Reeno

Bernd Boente, the manager of heavyweight champions Vitali and Wladimir Klitschko, believes British boxer Dereck Chisora is legitimately crazy. On July 14th at Upton Park in West Ham, Chisora will collide with domestic rival David Haye, who Wladimir decisioned last July.

During his campaign to secure a fight with Wladimir, Haye took his verbal skills to the next level. He showcased a lot of wild antics like traveling to different destinations to confront the unified champion with verbal insults. Boente viewed most of these stunts as PR moves to create headlines.

Chisora, on the other hand, is viewed by Boente as being mentally disturbed. This past February in Munich, Chisora went on a rampage with unexpected attacks which took place before and after his twelve round decision loss to Vitali Klitschko.  At the official weigh-in, he slapped Vitali across the face. Once he entered the ring on the night of the fight, he spit water in Wladimir's face. And during his participation in the post-fight press conference, he confronted Haye - and a wild brawl broke out.

Boente doesn't blame Haye for the post-fight brawl. He felt the boxer was simply defending himself.

"I at least have to confess that Haye is talking this and talking that but he's not crazy. He's doing a lot of PR things, but Chisora really needs psychological help. That's what we all think after what happened in Germany. The guy slapped Vitali, spit into Wladimir's face, threatened the commissioners, jumped into Haye. And I have to say that all of that came from the Chisora side, not from Haye," Boente told BoxingScene.com.

"If you were in the position of Haye, with all of these things happening before the fight..what would have you done? You would have probably did the same thing that Haye did because he was afraid that [Chisora] would hit him and knock him down and Haye wanted to throw the first punch. That's what I think. The guy [Chisora] is just crazy. He hit his girlfriend. This is the lowest, the lowest you can go...if you hit a woman."