TAMPA, FLA. (AP) -- Luis Tejada scored in the 19th minute and Gabriel Gomez converted a penalty kick later in the first half, helping Panama stun the United States 2-1 on Saturday night to advance to the quarterfinals of the Gold Cup.

The victory was the first for the Panamanians in nine meetings with the Americans, who had never lost a match in the group stage of any Gold Cup, the tournament that determines the champion for North and Central America and the Caribbean.

Despite the loss, the U.S. can clinch a spot in the quarterfinals by beating Guadaloupe in its final Group C stage match Tuesday night in Kansas City.

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