Two more arrests have been made following violence which ended in the death of a football fan near a pub.
Tony Johnson, 55, suffered a fatal head injury near The Manchester bar on Blackpool promenade after the Blackpool vs Burnley match on 4 March.
Lancashire Police said a 31-year-old Blackpool man and an 18-year-old Burnley man were arrested on suspicion of violent disorder and assault.
Last week a man was arrested on suspicion of manslaughter.
Six others were arrested in relation to the disorder and all nine have been released pending further inquiries.