By Caroline Gall
BBC News, West Midlands
Police are investigating video footage of a West Bromwich Albion supporter appearing to threaten to stab a rival fan.
The footage, shared on social media, was filmed at the club's first game of the Championship season at Blackburn Rovers on Saturday.
Lancashire Police said it was aware of the footage and an individual had been identified and would be spoken to.
West Bromwich Albion said they were working with the force.
"We are aware of video footage published on social media following the club's EFL Championship fixture at Blackburn Rovers on Saturday," the club said.