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Netherlands' footballers celebrate after defeating Costa Rica during the penalty shootout after the extra time in the World Cup quarterfinal football match between Netherlands and Costa Rica on Saturday. Damien Meyer /AFP/Getty Images hide caption

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Damien Meyer /AFP/Getty Images

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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Raphael Alves/AFP/Getty Images

Clint Dempsey scored Team USA's first goal during the FIFA World Cup 2014 Group G preliminary round match against Ghana at Estadio Arena das Dunas in Natal, Brazil, on Monday. Kamil Kraczynski/EPA/Landov hide caption

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Kamil Kraczynski/EPA/Landov