Three men have been arrested after groups of supporters clashed, following Port Vale's match with Sheffield United.
Two were arrested for public order offences and a third was arrested on suspicion of assault, in a separate incident in Newcastle Street.
Police still want to trace a man who threw a brick through a coach window as it left Vale Park yesterday.
Officers say disorder broke out in and around the football ground as home and away supporters clashed and missiles were thrown after the match.
Those on duty for the fixture formed lines between the groups to stop the situation getting worse.
Superintendent Carl Ratcliffe, Commander of the police operation, said: "It became apparent there were groups of people intent on being involved in disorder.
"Our priority was to ensure we disrupted the intentions of a minority with their minds set on causing trouble."
Earlier in the day police officers monitored crowds in Leek, after between 600 and 700 Sheffield United supporters stopped off on the way to the match.
Supt. Ratcliffe said that, although most of the supporters were good-natured, a report was received of a flare and fire alarms being set off in a pub.
"We appreciate the disruption this caused in the town and thank the local community for their patience and assistance," he said.
Potential witnesses with any information are being asked to ring Staffordshire Police on 101 quoting reference 171 of 14 April.