We are investigating an assault in the Thornhill area of Southampton.
Two white men in their 20s were involved in the incident on Warburton Road near to the scout hut between 1.15pm and 1.45pm on Friday, January 5.
One of the men attended Southampton General Hospital where he was treated for facial injuries and requires further treatment.
During the assault, a woman in a silver car stopped nearby and stayed in her car during the assault. We would like to speak to her as we believe she can help with our enquiries.
A number of other cars passed by during the fight and may have witnessed something to help us locate the suspect.
If you have any information relating to this case, please call 101 quoting reference '44180005971', or contact Crimestoppers anonymously.