Oxford United and Kidderminster have both lost appeals against red cards issued in last Saturday's Blue Square Premier clash, which Oxford won 2-0.
U's midfielder Carl Pettefer and Kidderminster striker James Constable will each now serve three match bans.
Constable was sent off for an elbow on Oxford's James Clark whilst Pettefer's red card was for serious foul play.
They were dismissed in seperate incidents and the decisions were upheld by the FA disciplinary committee.
Meanwhile, Oxford striker Alex Twigg, who has been out of action since early October, stepped up his comeback from an ankle injury by scoring in the reserves.