Thames Valley Police is releasing CCTV images in relation to an incident of grievous bodily harm in Oxford.
The victim, a 19-year-old man, was in the White Horse public house, London Road, Oxford, at about 7.10pm on Sunday 1 March when he became embroiled in an altercation with two men.
One of the men threw a glass at the victim, after which the second man punched the victim in the face.
The victim sustained injuries to his face and was treated at John Radcliffe Hospital. He has since been discharged from hospital.
Thames Valley Police would like to speak to the man pictured in the CCTV images as he might have vital information regarding the incident.