Ghana coach, Ratomir Dujkovic is expected to vary the Black Stars’ game against the United States without two key players due to suspensions.

Asamoah Gyan and Sulley Muntari, who both scored in the Black Stars' stunning 2-0 win Saturday over the Czechs, will miss the U.S. game because each has received two yellow cards in the opening round.

Ratomir Dujkovic vows his team will be ready for the "crucial" match up with the Americans.

"I'll try to find a replacement," Dujkovic said. "It's a bit difficult for us because the next match is crucial ... The Americans will play to win."

The Black Stars have a chance to advance to the second round in their first trip to the World Cup.

A win over the Americans qualifies them, and might even place them first overall in the group.

A tie would still give Ghana a decent chance of making the second round, provided Italy beats the Czech Republic.