It more that likely relates much more closely to an unfortunate mixture of large quantities of beer and adrenalin.

I'm not saying they are not involved Don but in the UK, loutish behaviour is far more associated with (soccer) football than it is with other sports and I'd imagine for example rugby supporters may well enjoy a drink and get excited about the game without this sort of thing.

Whatever, I can't see any way "Americanism" can be blamed for this.