Assou-Ekotto confronted the supporter next to the tunnel at White Hart Lane moments after the final whistle and had to be pulled away by Spurs assistant boss Joe Jordan, who then led the 25-year-old Cameroon international down the tunnel.
A police spokesperson said: 'The police are investigating an allegation of assault following Saturday's Spurs v Wolves Premier League match at White Hart Lane.
Under investigation: Police will question Assou-Ekotto over an alleged fan clash
'There have been no arrests.'
It is understood the allegation came from the supporter, who gave his version of events to 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.
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