The U.S. and Panama are set to meet in the Gold Cup semi-finals tonight at Reliant Stadium in Houston.

The U.S. defeated Jamaica 2-0 in the quarters, while Panama defeated El Salvador on penalty kicks.

Going into the game, the Americans will be without Jozy Altidore who will miss 4-6 weeks with a hamstring strain. Juan Agudelo will take over for Altidore, while Chris Wondoloski has made the 18-man roster.

The U.S. is led by Clint Dempsey, while Panama is led by Luis Tejada.