Police stopped Fleetwood Town manager Joey Barton from leaving Barnsley's stadium as they investigated an alleged assault.
Footage showed the former England and Manchester City footballer being driven from Oakwell Stadium before an officer stood in front of the vehicle to stop it.
It comes after Barton and Barnsley manager Daniel Stendel reportedly had to be separated by stewards in the tunnel after their teams' League One match on Saturday.
Sky Sports News said it understood South Yorkshire Police have spoken with Barton, 36, to assist with their inquiries, and will speak to him again later in the week as part of a voluntary interview.
It also reported that Stendel received medical attention in the tunnel.
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A South Yorkshire Police spokesman said: "We are aware of something that has taken place in the tunnel after the game and we are investigating."
Barnsley said in a statement: "The club can confirm there was an alleged incident in the tunnel area that took place following the conclusion of today's match, which South Yorkshire police are currently investigating.