A dog that attacked and seriously injured a man was an XL thug, police confirmed.
The officers were called Friday afternoon to Ripon Drive in West Bromwich after the reports of a dog attack in the rear garden of a property.
An injured man of about 20 years was taken to the hospital in a critical but stable condition, said the force of West Midlands.
A 32 -year -old man who gave himself to the police on Monday was arrested on suspicion of possessing a dog dangerously out of control, and suspects having a forbidden race.