York City manager Billy McEwan has condemned the behaviour of trouble-makers who are pretending to be fans in order to disrupt football matches.
Speaking after their 2-0 away defeat to Oxford last week, McEwan stressed: "I'm afraid they are not what you would call proper City fans."
Three people were arrested as Oxford police tried to control altercations between a group of about 40 travelling supporters and home fans with horses, dogs and riot vans.
"I was disappointed about the result after the game but I was also disappointed to hear about the trouble outside the ground," he told the York Press.
"We are having enough problems with police charges. York don't need to be the name of the club where the police have got to move in - we are going to end up paying the police charges.
"We could do without the trouble from the fans. It's only a minute few that are causing it but it's enough to cause us a bit of concern."