VANCOUVER, British Columbia (AP) -- It doesn't matter that the U.S. women's soccer team is clearly one of the best in the world. It doesn't matter that the Americans have outscored their opponents by a combined score of 31-0 so far in Olympic qualifying.
All that truly matters is one game.
The setup of the qualifying tournament puts all of the onus on Friday's semifinals -- United States vs. Costa Rica and Canada vs. Mexico -- for the two CONCACAF berths for the London Games.
The Americans have never lost to Costa Rica -- they've never even allowed a goal in seven games against the Central American nation.
But the U.S. players say they are focused because of what's at stake.