Seven men were arrested when officers came under sustained attack from rival gangs of football hooligans at the FA Cup tie between Stoke City and Birmingham City, police said yesterday.
The disorder started following Birmingham's 1-0 victory at Stoke's Britannia Stadium on Sunday afternoon, as opposing fans attempted to confront each other.
Violence broke out at the south-east corner of the ground when 200 visiting fans ripped down a length of fencing separating them from home supporters.
Police officers, mounted and dog support officers, were attacked by both sets of fans and officers were forced to close the nearby A50 trunk road as they dispersed those involved.
Staffordshire Police said four men from north Staffordshire had been arrested for public order offences - a 19-year-old from Burslem, a 29-year-old from Stoke, a 22-year-old from Meir and a 24-year-old from Leek.
A force spokesman said the man from Leek had been charged with a public order offence and the other three suspects had been released on police bail.
Two other men from Burslem - aged 16 and 56 - were arrested on suspicion of assaulting a police officer and bailed until next month.