After 1999 , Chelsea Headhunters formed a temporary alliance with other British hooligans supporting different teams such as Glasgow Rangers .
In 2000 , Chelsea Headhunters formed a temporary alliance with other British hooligans supporting Cardiff City , Swansea City , Rangers and Leeds United led by Arsenal 's junior firm , The Herd to attack Galatasaray fans in Copenhagen and Heysel St
Chelsea Headhunters