A 45-year-old man with a long-standing history of a right reducible inguinal hernia presents this time with a 6- hour history of the inguinal hernia appearing but is unable to reduce it. It has become increasingly painful and associated with abdominal distention and vomiting. On examination, the patient is in moderate pain. The right inguinal swelling is tender, irreducible and has a negative cough impulse with a visible bluish discoloration. The most likely complication to this hernia is: