Ash Southern, Betsey Armstrong

U.S. goalkeeper Betsey Armstrong can't stop Ash Southern's penalty shot but the Americans lead at the half. (Julio Cortez/AP)

U.S. goalkeeper Betsey Armstrong can’t stop Ash Southern’s penalty shot but the Americans lead at the half. (Julio Cortez/AP)

Goalkeeper Betsey Armstrong, top, of the United States is unable to stop a penalty shot by Ash Southern of Australia during a women’s semifinal water polo match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Julio Cortez)