The victim, a 19 year-old man, had been leaving the Moon & Starfish at around 1am on 19 September when he happened upon a fight taking place outside.
As he left the pub he was struck to the side of the face causing him to fall to the floor where he was then kicked in the face.
He was left with a fractured jaw.
Ofifcers believe members of the public helped him get away and we need anyone who saw what happened, has CCTV, dash cam, or mobile phone footage, or any other information to come forward.
If have any information please call us on 101 quoting the crime reference number 42/156277/20