World Cup Qualifier Today

The U.S. vs. Mexico:

Reporting from Mexico City -- The United States national soccer team has arrived at Azteca Stadium, where more than half the anticipated 105,000 fans already are in their seats for the Americans' 3 p.m. World Cup qualifier against Mexico.

Chants of "Mexico! Mexico!" are echoing through the cavernous stadium as the U.S. and Mexican flags are carried out onto the field. The game is still more than an hour away, but the noise is deafening.