The interior and exterior reasons for football fans violence were discussed by documentation and logical analysis, and the preventive methods and countermeasures were put forward.

采用文献资料法和逻辑分析法，从内因与外因两个方面分析了球迷暴力行为产生的原因，并对如何预防球迷暴力行为提出了针对性的措施及对策。

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Fears that there would be violence between fans of the four teams saw police take action before the game.

由于担心四支球队的球迷可能的暴力行为，警方在比赛前采取了行动。

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Moreover, barras bravas (hooligans), whose penchant for vandalism and violence has discouraged law-abiding fans from attending matches, can be jailed for up to ten years for using explosives.

而且，向来以肆意破坏和打架滋事为乐的足球流氓阻碍了守法球迷入场观赛，现在，可以以使用爆炸品为由判处他们高达十年的监禁惩罚。

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But on Wednesday, police arrested eight Juventus fans for violence and possession of arms after a Liverpool supporter was hit on the head with a bat at a Turin bar.

BBC: SPORT | Football | Europe | Trouble mars Juve-Liverpool match

Those that argue American sports fans do indeed love violence point to things such as (1) the precipitous increase in interest for mixed martial arts and UFC compared to boxing, or (2) the fact that hockey fans go nuts whenever 2 meat heads start fighting.

FORBES: The NFL's Concussion Crisis: Will Fan Interest in Football Eventually Diminish?

It's not the first time British fans have been caught up in violence in Spain.

BBC: Bolton & Atletico face Uefa probe