Collingwood Police are investigating after a man was assaulted in Fitzroy on 9 June.
Police have been told the victim, a 27-year-old man from Tarneit, was approached by a man outside a business in Johnston Street at approximately 2.20am.
The man had a conversation with the victim before kicking him in the stomach and punching him in the face
The man fled east on Johnston Street, before catching a taxi on Brunswick Street.
The victim received minor injuries.
Police have released images of a man they believe can assist with their enquiries.
The man is described as 175cm, solid build, of African appearance with short black hair.
He was wearing a red jacket, white t-shirt, jeans and a gold necklace.
Anyone who recognises the man or who may have witnessed the incident is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au