Chisora was wearing a ring and might even have cut Klitschko with it instead of just imprinting a red weal on the cheek just below his left eye .
Chisora calls himself Del Boy after the Only Fools and Horses character .
Chisora , who calls himself Del Boy after the Only Fools and Horses character , was wearing a ring and might even have cut Klitschko with it instead of just imprinting a red weal on the cheek just below his left eye .