Police were called in at White Hart Lane last night after Tottenham defender Benoit Assou-Ekotto had to be pulled away from a clash with a fan following Spurs' 1-0 defeat by Wolves.
Jeers were ringing out around White Hart Lane as the Cameroon international trudged down the tunnel with his team-mates.
Assou-Ekotto appeared to take exception to comments from one fan and was alleged to have raised his hands to the supporter's throat.
Spurs coach Joe Jordan intervened, bundling the left-back down the tunnel and into the dressing room.
Police were summoned to the scene and the fan was questioned by officers. Assou-Ekotto was also expected to be interviewed.
A Tottenham spokesman said: 'We are aware of the incident and we are investigating. We expect all parties to be interviewed by the police.'
Spurs manager Harry Redknapp said: 'I don't know what it was all about or why someone was having a go at him. They don't see us lose here very often.'
It was a bitter end to an awful afternoon for Tottenham, who lost to Stoke City at home earlier in the campaign and drew at Aston Villa and Everton in their previous games.
'We probably didn't create quite enough chances,' said Redknapp. 'We had loads of the ball, probably about 80 per cent, but it's hard when teams just sit in there. It's hard to break them down and they had no need to come out.'
Wayne Rooney was at the centre of a diving controversy on a night when Manchester United blew their big chance to go level on points with main title rivals Chelsea at the top of the Premier League table, losing 1-0 at home to Gabriel Agbonlahor's 21st-minute goal for Aston Villa.
United and England striker Rooney capped a frustrating night when he was booked in the 25th minute after going down under a challenge from Luke Young. Referee Martin Atkinson brushed aside Rooney's penalty appeal and produced the yellow card instead. A TV replay showed there had been no contact.
Tottenham 0 Wolves 1: Redknapp suffers as Doyle delivers survival boostTOTTENHAM HOTSPUR FC