World Cup players warned they could be pushed to the brink by brutal Miami heat

World Cup players have been warned about extreme heat in Miami

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Miami-bound World Cup players face a formidable opponent beyond their rivals: the city's oppressive heat and humidity, which threaten to transform the tournament into a grueling test of endurance as much as skill.

Teams accustomed to cooler climates are particularly vulnerable if they haven't had sufficient time to acclimatize, warns Dr.