A man who was assaulted near the Amex Stadium in Falmer following the Rod Stewart concert last month later discovered that he had suffered a broken jaw.
The man, from Lee-on-the-Solent in Hampshire, was attacked at the junction of the A27 and Knights Gale Road as he left the concert around 10.30pm on June 13.
He returned home and went to his local hospital the following day where he was admitted and underwent surgery. His jaw was broken in two places with an additional green stick fracture, requiring a significant number of plates and screws to be inserted.
Police are appealing for witnesses to the incident when a man got out of a BMW car and struck the victim.
There is no description of the offender, but the victim was in some pain and was bleeding from his mouth.
Anyone who saw the incident or who has any information about it is asked to call Sussex Police on 101 or email firstname.lastname@example.org quoting serial 980 of 19/06.