Video: 'I Believe' U.S. World Cup Promo

PHILADELPHIA (CBS)–On Wednesday in Brazil, U.S. coach Jurgen Klinsmann told reporters it's unrealistic for the U.S. to win the World Cup.

"For us now talking about winning a World Cup, it is just not realistic," Klinsmann admitted." If it is American or not, you can correct me."

However, in a promo video ESPN put together titled 'I Believe', many athletes and celebrities disagree with the coach.

U.S. opens on Monday vs. Ghana at 6:00pm ET.