Full-length HQ video: Dereck Chisora SLAPS Vitali Klitschko at weigh-in - WARNING! Explicit language

WARNING: THIS VIDEO CONTAINS EXPLICIT LANGUAGE

Britain's heavyweight boxer Dereck Chisora nearly sparked a pre-fight brawl at the WBC heavyweight title weigh-in, one day before the real fight will take place.

Chisora faces the current world champion Vitali Klitschko in Munich on Saturday night, and as the two went face-to-face for the cameras, Chisora surprised the older of the two Klitschko brothers by slapping him in the face. Fight officials and the boxers' trainers had to separate the pair to avoid any more aggression.

You can see the action in the video above which has been sent to talkSPORT courtesy of TV channel Box Nation, where you can watch the actual fight on Saturday 18th February. Click here for more information