Detectives in Bournemouth are appealing for witnesses to come forward after an altercation in the town on Christmas Day.
The incident, which involved approximately 10 men, happened just after midnight on Friday 25 December.
The affray started inside the Dancing Jug on Post Office Road and moved onto Richmond Hill.
A 24-year-old Poole man sustained a non-life-threatening stab wound during the incident and was treated in hospital.
Officers are making enquiries to try and establish exactly what happened.
Detective Constable Matt Cooke, of Bournemouth CID, said: “I am keen to speak with the man pictured in the CCTV image as I believe he can help with my enquiries.
“I would also like to hear from anyone else who may have witnessed the incident or has information relevant to it.
“I would urge these people to come forward and contact me on 101.”
Call Dorset Police in confidence quoting incident number 25:1.