A man was headbutted in an unprovoked attack at a Mansfield nightclub just before Christmas.
The 22-year-old Mansfield man was assaulted in the toilets in Wonderland nightclub (formerly Liquid) in Clumber Street at around 2.45am in the early hours of Friday 23rd December.
He was heatbutted in the face, causing severe facial injuries which required stitches.
The man is described as being white and tall.
Anyone who witnessed the assault, or has any information, should contact Nottinghamshire Police on 101 or call Crimestoppers anonymously on 0800 555 111.