A teenager needed stitches in his ear after he was punched in the face and attacked with a pool cue in a Walsall club.
The 19-year-old was assaulted in Samras on Caldmore Green in the early hours of Saturday 7 September.
West Midlands Police have released images of two people they want to trace in connection with what happened.
Investigating officer, DC Narinder Sandhu, said: "The CCTV cameras in the club show two men who I am very keen to identify."
"The young man suffered a large cut to his ear which resulted in him spending the night in hospital and requiring a number of stitches."
"Were you in the club that night and saw what happened? Do you recognise either of these two men? If so, I want to hear from you."