Serious fan violence taking on life of its own; can it be stopped? - CBSSports.com
Football hooliganism in the United Kingdom - Wikipedia
England: The 21 teams with the worst-behaved fans in terms of arrests so far this season | Balkanski Navijaci
In Argentina, Violence Is Part of the Soccer Culture - The New York Times
Unfriendly confines: the unsung history of America's low-key hooliganism | US sports | The Guardian
The Worst Behaved Fans In English Football Have Been Revealed - SPORTbible
Inside the violent world of football's Ultras | Daily Mail Online
Are Eagles fans really the worst fans in the NFL? Not by a long shot.
Soccer's Most Rowdy Fanbases In The World
Football hooliganism - Wikipedia
What sparked the violence at Nice vs. Cologne? – DW – 09/09/2022
Indonesia soccer stadium crush: At least 125 killed in Malang, East Java | CNN
6 of the most dangerous hooligans in Italy - Riot With Style - The best page about hooligans and ultras!
Football's Most Dangerous Away Days | Who Ate all the Pies
10 football clubs with the most violent fans
A quietly escalating issue for NFL: Fan violence and how to contain it - The Washington Post
Ranked: The most violent fans in football – The Versed
Which Premier League team has the worst-behaved fans? | For The Win
English football hooliganism has returned to its worst and the FA and police must act - John Cross - Mirror Online
Which Premier League team has the worst-behaved fans? | For The Win
Football's wall of SHAME: UK's most violent and ferocious hooligans REVEALED - Daily Star
A Sociological History of Soccer Violence - The Atlantic
Inside the world's most dangerous football league | Foreign Correspondent - YouTube
