POLICE have appealed for witnesses to an assault in Liquid & Envy nightclub in Stanhope Road, Portsmouth.
It happened on the downstairs dancefloor at about 1.30am on Saturday, July 12.
A 19-year-old man was headbutted by another man, leaving a gash on his nose that needed stitches.
An 18-year-old man from Portsmouth was arrested and bailed until August 27.
Witnesses should call the police on 101, or Crimestoppers on 0800 555 111.