Police are appealing for information to an assault in Saundersfoot on Friday night.
The incident occurred at about 11.50 pm outside the SPAR shop and the injured person is believed to have been the victim of mistaken identity in an unprovoked attack.
Officers are seeking witnesses to the incident and are keen to speak to a teenage girl who remained with the victim after the attack.
Any person with knowledge of the incident is asked to contact PC Mike Smith at Saundersfoot police station on 812223.