Reports suggest Barton and Stendel had to be separated by stewards and police in the tunnel.
South Yorkshire Police have confirmed they are investigating the incident with Barton stopped from leaving Oakwell at full-time.
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!