Police have renewed their appeal for information - almost a month after an unprovoked attack in a Chesterfield bar left a man with facial injuries.
The 48-year-old man was in Mojo in Church Walk at about 2.20am on Sunday, October 23.
He was stood near the toilets when a man walked up to him and punched him in the face.
He suffered a fractured cheekbone and fractured jaw.
Police issued an appeal for information at the time of the assault but are now renewing their appeal.
Witnesses or anyone with information should call DC Steven Beedall on 101, quoting reference 16000336183, or Crimestoppers on 0800 555 111.