Detectives investigating a brawl between Leeds United and Middlesbrough fans at Leeds railway station are looking for this man.
Eight people were believed to have been involved in the fight on August 18, after United had played Wolverhampton Wanderers at Elland Road and Middlesbrough had faced Barnsley away.
Det Con Tom Eastwood, of British Transport Police, said: “At around 6.50pm, a group of Leeds and Middlesbrough supporters became involved in a fight with each other on platform 13 at Leeds railway station.
“A group of eight people were involved in the disorder which saw several people injured as glasses and bottles were used.”
Seven men have already been arrested and are on police bail pending further enquiries.
Det Con Eastwood added: “We would like to speak to the man pictured as we believe he holds key information about the incident and could assist us with our investigation.
“I would ask anyone who knows the man, or his whereabouts, to get in touch.”
Call BTP on 0800 405040, quoting incident number B4/NEA of October 29, or Crimestoppers on 0800 555111