A growing body of scholars see football playing an under-appreciated role as keeper of society's well-being -- providing a sense of identity with an almost religious role.
The late Liverpool manager Bill Shankly once said that football is more important than "life and death". But Pele's "Beautiful Game" may also be providing a healthy outlet for tribalistic aggression.
"It provides you with an opportunity to side with your country without being violent to another. So in that way it does replace war," said David Ranc, a French sociologist who specialises in group identity in football.
Ahead of the June 12 start to the World Cup, fans are kitting themselves out with wigs, T-shirts, boas and other regalia, and rehearsing the lyrics to patriotic anthems. All is intended to put up a united national front either at home or in Brazil.
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Rather than mere nationalistic zeal, the behaviour may be symptomatic of a deeply entrenched desire to belong, the experts said.
"Identification with a sports team can provide people with an important identity prop, ... A sense of belonging in what would otherwise be an isolated existence," according to Eric Dunning, a sports sociologist with the University of Leicester.
For some, this can even take on religious overtones.
- The new religion? -
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"The fans of a football team form a community of believers that is characterised by distinctively religious forms of behaviour," sports sociologist Gunter Gebauer of the Free University of Berlin told AFP.
It is not uncommon for fans to turn their bedrooms into football shrines, and "the saints are their team's players, for whom they will make harrowing pilgrimages."