A man sustained a cut to his head after an incident at a pub following a Doncaster Rovers game.
It happened at the Paris Gate in St Sepulchre Gate on Saturday April 6 after the Doncaster Rovers versus Tranmere Rovers football match.
A 19-year-old man has been arrested in connection with this incident. and has since been released on police bail.
Anyone with any information or who believes they may have witnessed the incident is urged to contact South Yorkshire Police on 101 quoting incident number 1011 of the 6 April 2013. Alternatively, people can call Crimestoppers anonymously on 0800 555 111.