Police are seeking information about an alleged assault on an 18-year-old man in a Doncaster town centre bar.
It occurred around 11.45pm on Friday, March 8, in Sugar Lounge on Priory Walk.
He was at the bar when an unknown male punched him, causing him to fall to the floor, and a second male then kicked him. He was left unconscious and sustained facial injuries which needed hospital treatment.
Officers investigating the incident would like to speak to the pictured man, as he may hold vital information about the incident. He is white, about 30, around 5ft 10ins tall, of a medium build, with short dark hair and wearing glasses. He was wearing a blue short-sleeved T-shirt with a motif on the left. Witnesses call 101 quoting incident 22 of March 9.