Dereck Chisora reckons he has already cracked it before next month's clash with Vitali Klitschko. The London heavyweight, 28, is preparing for the WBC world title showdown in Munich on February 18 with a diet of seven boiled eggs a day. Chisora said: "I'm one of those blokes who cannot even boil one. "Luckily a good friend runs a restaurant and for breakfast I eat seven medium boiled eggs every day. "I need as much protein as possible."