At Stanford Stadium

United States vs. Brazil

Time: 4:30 p.m.

TV: ESPN.

So far in tournament: U.S. def. Denmark, 3-0, def. Nigeria, 7-1, def. North Korea, 3-0, def. Germany, 3-2; Brazil def. Mexico, 7-1, def. Italy, 2-0, tied Germany, 3-3, def. Nigeria, 4-3 (OT).

Data: Americans are favored, but more defensive breakdowns could be costly against dangerous Brazilians. Defensive key for U.S. is slowing down MF Sissi, the tournament's most outstanding player so far with seven goals, three assists. Brazil, in first trip to semifinals, has collapsed in second half of past two matches, only to survive with dramatic goals.

At Foxboro (Mass.) Stadium

Norway vs. China

Time: 7:30 p.m.

TV: ESPN2.

So far in tournament: Norway def. Russia, 2-1, def. Australia, 7-1, def. Japan, 4-0, def. Sweden, 3-1; China def. Sweden, 2-1, def. Ghana, 7-0, def. Australia, 3-1, def. Russia, 2-0.

Data: Defending champion Norwegians have won 10 straight Cup matches, dating from 1995 tournament in Sweden, and are 14-1-1. Their size and discipline may trouble Chinese, particularly tall striker Ann Kristin Aarones (four goals). China has been quietly dominant, led by F Sun Wen (five goals). China's speed and passing will test Norway's defense.

CAPTION: The top players for each team remaining in the Women's World Cup (clockwise, from top left): Norway's Ann Kristin Aarones, Mia Hamm of the United States, China's Sun Wen and Brazil's Sissi.