LONDON – Dereck Chisora and David Haye may face life bans for their Munich brawl says the British Boxing Board of Control General Secretary, Robert Smith."It’s a possibility,” Smith told BBC Radio 5 live. "The board have many powers. They can fine, they can suspend and they can withdraw a licence.”Haye and Chisora clashed after Chisora’s defeat by defending WBC heavyweight champion Vitali Klitschko.The British Boxing Board of Control (BBBofC) said a misconduct investigation had been opened into Chisora’s "behaviour...prior, during and after” the Klitschko fight."A further statement will be issued once the stewards have decided on what action will be taken,” the BBBofC said."With regard to Mr David Haye, Mr Haye is not a licensed boxer with the British Boxing Board of Control and therefore no longer under our jurisdiction.”Although Haye has retired from the sport, the board could choose to effectively ban him by denying him a licence if he seeks to fight again.Chisora and his trainer Don Charles had been arrested at the city’s airport following the scrap at a post-fight news conference late on Saturday night.