BUENOS AIRES, AUG. 9 -- Things looked a lot different today for the U.S. basketball team -- in all aspects of the game.

The Americans routed South Korea, 146-67, a far cry from the harried, overtime victory over Greece in Wednesday's opening game in the World Championships.

South Korea had no player on its roster over 6 feet 6 and the United States often had four players on the floor as tall or taller than that.

"We have more talent than South Korea and should win," U.S. Coach Mike Krzyzewski said. "But in winning today we played well. You can win and play poorly."

Alonzo Mourning of Georgetown had 29 points in less than 19 minutes to lead the United States, which shot 73 percent from the field and controlled 54 rebounds to 17.

"You learn from games like this, and we learned a lot today," said Mourning, 11 of 14 from the field with four blocked shots. "The guys were hitting their shots and got their shooting eyes back. This could be a start for us."

The U.S. team virtually clinched a quarterfinal berth. In its final pool game, the squad meets Spain on Friday. A loss by eight points or less would be sufficient to advance.