Acaraje are a regional food in Brazil made from fried balls of mashed-up beans, onions and salt. The balls are sliced in half, slathered with a spicy pepper sauce and cashew paste, and then topped with shrimp. Russell Lewis/NPR hide caption

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Jermaine Jones and other members of the U.S. men's national team train in Manaus, Brazil. Fitness may be a crucial factor in the U.S.-Germany game on Thursday in Recife . Raphael Alves/AFP/Getty Images hide caption

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United States' goalkeeper Tim Howard works out during a training session. "We're going to do our best to bottle him up," Howard said of Portugal's forward Cristiano Ronaldo. Julio Cortez/AP hide caption

itoggle caption Julio Cortez/AP

In this photo taken with a fisheye lens, members of the U.S. soccer team warm up during a training session the day before their Group G World Cup match with Ghana in Natal, Brazil. Julio Cortez/AP hide caption

itoggle caption Julio Cortez/AP