Durham Regional Police are asking for help in identifying a man who was involved in a fight that left another man with head injuries last November in Oshawa. The altercation occurred on November 21st at about 7:30pm at a Subway shop on Park Rd. One of them threw a punch and left the scene in a red four-door sedan. The man who was struck spent more than a week in hospital with serious head injuries. Investigators want to speak to the other party involved. He's described as black, in his mid-20's to 30's, about 6-feet tall, with black hair and a full beard. Anyone with information is asked to call police or Durham Regional CrimeStoppers.