The defender confronted the supporter next to the tunnel at White Hart Lane moments after the final whistle of the 1-0 defeat, and had to be pulled away by Spurs assistant boss Joe Jordan, who then led the 25-year-old Cameroon international down the tunnel.

Police yesterday confirmed they are investigating "an allegation of assault" in relation to the incident, while if the matter was mentioned in the report of referee Stuart Attwell, then the FA could themselves launch a separate probe.

It is understood the allegation came from the supporter, who gave his version of events to the club's security officials after the incident, as did Jordan.

Spurs are also investigating the matter and may look at CCTV footage, as the clash was not caught on camera by broadcasters covering the match.

Harry Redknapp's men were jeered off after the defeat, which dented their hopes of maintaining a challenge for the Champions League this season.