Crolla , 29 , is a modern - day Cinderella Man .
Crolla has come back from suffering a fractured skull and broken ankle in an assault by burglars 11 months ago to become Britain 's 10th current world champion .
Crolla , 29 , is a modern - day Cinderella Man and he has come back from suffering a fractured skull and broken ankle in an assault by burglars 11 months ago to become Britain 's 10th current world champion .