“We have worked for a long time with different people, different experts, on altitude training, including many from the U.S. Olympic Committee. The research we have stuck with is one that says if you don’t have enough time to acclimatize, which can take 10 days or so, then going in late is your best bet.”

— U.S. coach Bob Bradley explains why his team isn’t arriving in Mexico City, which lies more than 7,000 feet above sea level, until Tuesday for Wednesday’s World Cup qualifier against El Tri at Azteca Stadium. (USSoccer.com)