THREE men launched an unprovoked assault on another man as he walked with his girlfriend in Sale, fracturing his jaw.
Police have now released CCTV images of the suspects.
At around 10pm on December 13, the 25-year-old was walking with his girlfriend on Northenden Road when he was approached by three men.
The victim was then repeatedly punched and kicked before he fell to the floor.
The men then ran off.
Det Con Dave Stevenson from Trafford South INPT said: “This was a completely unprovoked attack on a man who was enjoying a night out with his girlfriend.
“Thankfully members of the public came to help and the men ran off.
“He was taken to hospital where he was treated for a fractured jaw.
“After scouring CCTV, we have found these two images taken from the Metrolink before the incident.
“I would ask anyone who may recognise the men to contact police as soon as possible.”
Anyone with information is asked to call police on 0161 856 7530 or Crimestoppers on 0800 555 111.