Aston Villa and Birmingham City have played down reports that they are to be investigated by the FA after the ugly end to Sunday's derby at St Andrew's.
Tempers flared on the pitch at the final whistle when a feud between Blues defender Mario Melchiot and Villa midfielder Lee Hendrie boiled over into a fracas. According to reports, the scuffle continued in the tunnel afterwards.
Villa captain Olof Mellberg, although not an eye witness, confirmed that an incident had taken place after the match, while Blues boss Steve Bruce said: "I didn't see anything at all. That's all I'm saying."
Footage of the incident is said to have been caught by Sky Sports cameras which has so far been withheld. But, if a tape of what went on does exist, then the FA will want to view it.
Neither Villa nor Blues believe they have a case to answer particularly after the tunnel incident was not included in referee Mike Riley's report. The Leeds official apparently missed the incident because he was one of the last to leave the pitch.
"The reports in the media are all based on unsubstantiated rumour, " said a Villa spokesman. "The referee has indicated that he will be putting nothing untoward in his report so therefore that is the end of the matter, as far as we are concerned."
Blues took a similar stance, adding: "An incident is not mentioned in the referee's report and we believe that is the end of the matter."
But the FA, determined to crack down on tunnel rows, may still act. "We will look at whether there is any other evidence," said an FA spokesman.