Former Italian International Footballer Gianluca Vialli [Getty Images]

Gianluca Vialli, former Italian international football player and former manager of Chelsea F.C., pauses during a Bloomberg Television interview in London, U.K., on Tuesday, June 10, 2014. Sao Paulo declared a holiday for June 12, the first day of tournament play in the 2014 World Cup, meaning there will be no trading on that day. Photographer: Simon Dawson/Bloomberg via Getty Images

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