However docile Portugal appeared in the first half hour of its World Cup opener against Germany, its squad against the United States will be substantially weakened.
Star center back Pepe, a key member of Real Madrid's UEFA Champions League-winning team, received a straight red card in the Germany game for a confrontation with German forward Thomas Muller in the 38th minute.
The two had collided and Pepe leaned over to head-butt Muller while he was sitting on the ground. Muller later scored a left-footed goal through the heart of the Portugal defense to make it 3-0, and added the fourth for Germany late on.
FIFA rules mandate a one-game suspension for a red-card. The U.S game against Portugal is Sunday in Manaus.