The astonishing story of the forgotten Welsh football giants and the day Ninian Park erupted into violent chaos - Wales Online

Referee pelted with cans of beer, a corner flag speared into a policeman’s neck, Wales banned from playing in Cardiff

Old enemy' in for shock, says Flynn, The Independent

THE BATTLE OF NINIAN PARK — Welsh Football Fans

History of the Wales national football team (1876–1976) - Wikipedia

Violence involving Welsh club's fans erupts ahead of football

Bonnie Scotland and What We Owe Her

Hooliganism CHELSEA/esque

23 pictures of Cardiff's Ninian Park over the decades - Wales Online

gair rhydd - Issue 702 by Cardiff Student Media - Issuu

The astonishing story of the forgotten Welsh football giants and

24 strange things you probably never knew happened at Ninian Park

November 1921

THE BATTLE OF NINIAN PARK — Welsh Football Fans

What are the most emotional moments in football history? - Quora

November 1921