Catcher Dan Rohlfing throws to second base during the United States victory ©Getty Images

"Photo_Gallery" 

Mexico and US warming up ahead of action beginning in the second semi-final ©Getty Images

Starting pitcher Mark Serrano throws for Mexico ©Getty Images

Catcher Humberto Sosa hits the first home run of the semi-finals in the fourth inning ©Getty Images

Mexico celebrate their fourth inning home run ©Getty Images

Infielder Tyler Pastornicky celebrates after scoring a run to make it 3-1 to the United States ©Getty Images

Catcher Dan Rohlfing hits a two-run double in the bottom of the fourth inning ©Getty Images

Starting pitcher Zeke Spruill throws for the United States ©Getty Images

United States catcher Dan Rohlfing slides safely home in the fourth inning ©Getty Images

Mexican fans cheer their team's solitary run ©Getty Images

The atmosphere and crowd-size generally, however, was very poor in comparison with the first semi-final between Japan and South Korea ©ITG