Around €25,000 worth of counterfeit goods were seized during the Man Utd v Sampdoria match in Dublin yesterday.
Customs officers, gardaí and Dublin City Council officials were involved in the multi-agency operation, as well as representatives from Manchester United and Adidas.
They carried out inspections of 21 vendors - and 17 were found to be selling counterfeit goods.
Around 2,200 scarves, 225 hats, 200 placards and 140 flags were seized in total.
Gardaí say similar operations will continue in order to "stop counterfeit and sub standard products affecting the trade of genuine branded products".
