Police have released CCTV images of two men they want to speak to in connection with an alleged assault at a Corby kebab shop.
The victim was knocked unconscious after a row inside Flames in May.
The man who threw the punch walked off and got into a taxi.
Officers would like to speak to the men pictured in connection with the incident that occurred sometime between midnight and 2.45am on Sunday, 29 May.
Anyone with information can contact Northamptonshire police on 101. Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.