The incident occurred during an assault between two men after 05:00 GMT on Sunday. The man with the knife reportedly assaulted another man and was subsequently struck by a vehicle during the incident.
His injuries, while serious, are not considered life-threatening. A man in his 20s has been arrested on suspicion of causing grievous bodily injury by dangerous driving and is currently in police custody. The road, which was initially closed to traffic, has since been reopened.